56511725 has 12 divisors (see below), whose sum is σ = 70228020. Its totient is φ = 45110400.

The previous prime is 56511703. The next prime is 56511731. The reversal of 56511725 is 52711565.

It can be written as a sum of positive squares in 6 ways, for example, as 51529 + 56460196 = 227^2 + 7514^2 .

It is not a de Polignac number, because 56511725 - 2¹² = 56507629 is a prime.

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 56511691 and 56511700.

It is a congruent number.

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, 10505 + ... + 14945.

It is an arithmetic number, because the mean of its divisors is an integer number (5852335).

Almost surely, 2^56511725 is an apocalyptic number.

It is an amenable number.

56511725 is a deficient number, since it is larger than the sum of its proper divisors (13716295).

56511725 is a wasteful number, since it uses less digits than its factorization.

56511725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4960 (or 4955 counting only the distinct ones).

The product of its digits is 10500, while the sum is 32.

The square root of 56511725 is about 7517.4280841256. The cubic root of 56511725 is about 383.7480556724.

The spelling of 56511725 in words is "fifty-six million, five hundred eleven thousand, seven hundred twenty-five".