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53641225 = 52111311489
BaseRepresentation
bin1100110010100…
…0000000001001
310201221020221001
43030220000021
5102213004400
65153415001
71220641261
oct314500011
9121836831
1053641225
11283084a0
1215b6a461
13b161891
1471a47a1
154a98a6a
hex3328009

53641225 has 24 divisors (see below), whose sum is σ = 73164960. Its totient is φ = 38688000.

The previous prime is 53641223. The next prime is 53641229. The reversal of 53641225 is 52214635.

It is not a de Polignac number, because 53641225 - 21 = 53641223 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53641193 and 53641202.

It is not an unprimeable number, because it can be changed into a prime (53641223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 35281 + ... + 36769.

It is an arithmetic number, because the mean of its divisors is an integer number (3048540).

Almost surely, 253641225 is an apocalyptic number.

53641225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

53641225 is a deficient number, since it is larger than the sum of its proper divisors (19523735).

53641225 is a wasteful number, since it uses less digits than its factorization.

53641225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1641 (or 1636 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 53641225 is about 7324.0169988880. The cubic root of 53641225 is about 377.1373650144.

It can be divided in two parts, 53 and 641225, that added together give a triangular number (641278 = T1132).

The spelling of 53641225 in words is "fifty-three million, six hundred forty-one thousand, two hundred twenty-five".

Divisors: 1 5 11 25 55 131 275 655 1441 1489 3275 7205 7445 16379 36025 37225 81895 195059 409475 975295 2145649 4876475 10728245 53641225