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54983215225 = 5223220392
BaseRepresentation
bin110011001101010000…
…010100100001111001
312020220212121201210201
4303031100110201321
51400101200341400
641131533042201
73654351422011
oct631520244171
9166825551721
1054983215225
1121355656444
12a7a5926361
1352532a27a3
1429384a2c41
15166c0d306a
hexccd414879

54983215225 has 27 divisors (see below), whose sum is σ = 71307354223. Its totient is φ = 42053477840.

The previous prime is 54983215211. The next prime is 54983215229. The reversal of 54983215225 is 52251238945.

The square root of 54983215225 is 234485.

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

It can be written as a sum of positive squares in only one way, i.e., 19793957481 + 35189257744 = 140691^2 + 187588^2 .

It is not a de Polignac number, because 54983215225 - 27 = 54983215097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (54983215229) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26964756 + ... + 26966794.

Almost surely, 254983215225 is an apocalyptic number.

54983215225 is the 234485-th square number.

54983215225 is the 117243-rd centered octagonal number.

It is an amenable number.

54983215225 is a deficient number, since it is larger than the sum of its proper divisors (16324138998).

54983215225 is an frugal number, since it uses more digits than its factorization.

54983215225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4134 (or 2067 counting only the distinct ones).

The product of its digits is 864000, while the sum is 46.

The spelling of 54983215225 in words is "fifty-four billion, nine hundred eighty-three million, two hundred fifteen thousand, two hundred twenty-five".

Divisors: 1 5 23 25 115 529 575 2039 2645 10195 13225 46897 50975 234485 1078631 1172425 4157521 5393155 20787605 26965775 95622983 103938025 478114915 2199328609 2390574575 10996643045 54983215225