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56503025 = 523975693
BaseRepresentation
bin1101011110001…
…0101011110001
310221022122120122
43113202223301
5103431044100
65335020025
71254160565
oct327425361
9127278518
1056503025
1129992617
1216b0a615
13b924357
14770b6a5
154e61985
hex35e2af1

56503025 has 12 divisors (see below), whose sum is σ = 70252572. Its totient is φ = 45080640.

The previous prime is 56503003. The next prime is 56503081. The reversal of 56503025 is 52030565.

It can be written as a sum of positive squares in 6 ways, for example, as 3984016 + 52519009 = 1996^2 + 7247^2 .

It is not a de Polignac number, because 56503025 - 28 = 56502769 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 56502985 and 56503003.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7079 + ... + 12771.

It is an arithmetic number, because the mean of its divisors is an integer number (5854381).

Almost surely, 256503025 is an apocalyptic number.

It is an amenable number.

56503025 is a deficient number, since it is larger than the sum of its proper divisors (13749547).

56503025 is a wasteful number, since it uses less digits than its factorization.

56503025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6100 (or 6095 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 56503025 is about 7516.8494065000. The cubic root of 56503025 is about 383.7283619456.

The spelling of 56503025 in words is "fifty-six million, five hundred three thousand, twenty-five".

Divisors: 1 5 25 397 1985 5693 9925 28465 142325 2260121 11300605 56503025