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56807725 = 5213473719
BaseRepresentation
bin1101100010110…
…1000100101101
310221220010112211
43120231010231
5104020321400
65345330421
71256600122
oct330550455
9127803484
1056807725
112a080537
1217036a11
13b9ccc50
14778a749
154ec1dba
hex362d12d

56807725 has 24 divisors (see below), whose sum is σ = 77495040. Its totient is φ = 41046720.

The previous prime is 56807713. The next prime is 56807731. The reversal of 56807725 is 52770865.

56807725 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-56807725 is a prime.

It is a hoax number, since the sum of its digits (40) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13416 + ... + 17134.

It is an arithmetic number, because the mean of its divisors is an integer number (3228960).

Almost surely, 256807725 is an apocalyptic number.

It is an amenable number.

56807725 is a deficient number, since it is larger than the sum of its proper divisors (20687315).

56807725 is a wasteful number, since it uses less digits than its factorization.

56807725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3789 (or 3784 counting only the distinct ones).

The product of its (nonzero) digits is 117600, while the sum is 40.

The square root of 56807725 is about 7537.0899556792. The cubic root of 56807725 is about 384.4168943254.

The spelling of 56807725 in words is "fifty-six million, eight hundred seven thousand, seven hundred twenty-five".

Divisors: 1 5 13 25 47 65 235 325 611 1175 3055 3719 15275 18595 48347 92975 174793 241735 873965 1208675 2272309 4369825 11361545 56807725