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53220183025 = 52292372432
BaseRepresentation
bin110001100100001010…
…111000101111110001
312002101000011102021211
4301210022320233301
51332443331324100
640240553120121
73562563043312
oct614412705761
9162330142254
1053220183025
1120630451239
12a3933b9041
135031c57079
14280c290609
1515b742d1ba
hexc642b8bf1

53220183025 has 81 divisors (see below), whose sum is σ = 71915840451. Its totient is φ = 39066814080.

The previous prime is 53220183013. The next prime is 53220183031. The reversal of 53220183025 is 52038102235.

The square root of 53220183025 is 230695.

It is a perfect power (a square), and thus also a powerful number.

53220183025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 13 ways, for example, as 9977812321 + 43242370704 = 99889^2 + 207948^2 .

It is not a de Polignac number, because 53220183025 - 215 = 53220150257 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 1237678654 + ... + 1237678696.

Almost surely, 253220183025 is an apocalyptic number.

53220183025 is the 230695-th square number.

53220183025 is the 115348-th centered octagonal number.

It is an amenable number.

53220183025 is a deficient number, since it is larger than the sum of its proper divisors (18695657426).

53220183025 is an equidigital number, since it uses as much as digits as its factorization.

53220183025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

Multiplying 53220183025 by its product of nonzero digits (14400), we get a square (766370635560000 = 276834002).

The spelling of 53220183025 in words is "fifty-three billion, two hundred twenty million, one hundred eighty-three thousand, twenty-five".

Divisors: 1 5 25 29 37 43 145 185 215 725 841 925 1073 1075 1247 1369 1591 1849 4205 5365 6235 6845 7955 9245 21025 26825 31117 31175 34225 36163 39701 39775 46139 46225 53621 58867 68413 155585 180815 198505 230695 268105 294335 342065 777925 904075 992525 1151329 1153475 1338031 1340525 1471675 1555009 1707143 1710325 1983977 2531281 5756645 6690155 7775045 8535715 9919885 12656405 28783225 33450775 38875225 42678575 49507147 49599425 57535333 63282025 73407149 247535735 287676665 367035745 1237678675 1438383325 1835178725 2128807321 10644036605 53220183025