56565700 has 72 divisors (see below), whose sum is σ = 128991744. Its totient is φ = 21504000.

The previous prime is 56565667. The next prime is 56565713. The reversal of 56565700 is 756565.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 219972 + ... + 220228.

It is an arithmetic number, because the mean of its divisors is an integer number (1791552).

Almost surely, 2^56565700 is an apocalyptic number.

56565700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56565700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64495872).

56565700 is an abundant number, since it is smaller than the sum of its proper divisors (72426044).

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

56565700 is a wasteful number, since it uses less digits than its factorization.

56565700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 373 (or 366 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 56565700 is about 7521.0172184353. The cubic root of 56565700 is about 383.8701908604.

The spelling of 56565700 in words is "fifty-six million, five hundred sixty-five thousand, seven hundred".