56655750 has 32 divisors (see below), whose sum is σ = 141414624. Its totient is φ = 15108000.

The previous prime is 56655749. The next prime is 56655761. The reversal of 56655750 is 5755665.

It is a junction number, because it is equal to n+sod(n) for n = 56655699 and 56655708.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37021 + ... + 38520.

It is an arithmetic number, because the mean of its divisors is an integer number (4419207).

Almost surely, 2^56655750 is an apocalyptic number.

56655750 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

56655750 is an abundant number, since it is smaller than the sum of its proper divisors (84758874).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56655750 is a wasteful number, since it uses less digits than its factorization.

56655750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75561 (or 75551 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 39.

The square root of 56655750 is about 7527.0013949779. The cubic root of 56655750 is about 384.0737841074.

The spelling of 56655750 in words is "fifty-six million, six hundred fifty-five thousand, seven hundred fifty".