56400588 has 36 divisors (see below), whose sum is σ = 150073560. Its totient is φ = 17810496.

The previous prime is 56400541. The next prime is 56400601. The reversal of 56400588 is 88500465.

It is a happy number.

56400588 is a `hidden beast` number, since 5 + 640 + 0 + 5 + 8 + 8 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 40545 + ... + 41912.

It is an arithmetic number, because the mean of its divisors is an integer number (4168710).

Almost surely, 2^56400588 is an apocalyptic number.

It is an amenable number.

56400588 is an abundant number, since it is smaller than the sum of its proper divisors (93672972).

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

56400588 is a wasteful number, since it uses less digits than its factorization.

56400588 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82486 (or 82481 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 56400588 is about 7510.0324899430. The cubic root of 56400588 is about 383.4963285834.

The spelling of 56400588 in words is "fifty-six million, four hundred thousand, five hundred eighty-eight".