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56516725 = 5214391571
BaseRepresentation
bin1101011110011…
…0000001110101
310221100100101001
43113212001311
5103432013400
65335203301
71254245536
oct327460165
9127310331
1056516725
11299a1941
1216b16531
13b92a665
14771268d
154e65a6a
hex35e6075

56516725 has 12 divisors (see below), whose sum is σ = 70174080. Its totient is φ = 45153200.

The previous prime is 56516717. The next prime is 56516729. The reversal of 56516725 is 52761565.

It is not a de Polignac number, because 56516725 - 23 = 56516717 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56516729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35190 + ... + 36760.

It is an arithmetic number, because the mean of its divisors is an integer number (5847840).

Almost surely, 256516725 is an apocalyptic number.

It is an amenable number.

56516725 is a deficient number, since it is larger than the sum of its proper divisors (13657355).

56516725 is a wasteful number, since it uses less digits than its factorization.

56516725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020 (or 3015 counting only the distinct ones).

The product of its digits is 63000, while the sum is 37.

The square root of 56516725 is about 7517.7606373175. The cubic root of 56516725 is about 383.7593729916.

The spelling of 56516725 in words is "fifty-six million, five hundred sixteen thousand, seven hundred twenty-five".

Divisors: 1 5 25 1439 1571 7195 7855 35975 39275 2260669 11303345 56516725