56290668 has 48 divisors (see below), whose sum is σ = 154957824. Its totient is φ = 15563520.

The previous prime is 56290651. The next prime is 56290709. The reversal of 56290668 is 86609265.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 8205 + ... + 13412.

It is an arithmetic number, because the mean of its divisors is an integer number (3228288).

Almost surely, 2^56290668 is an apocalyptic number.

It is an amenable number.

56290668 is an abundant number, since it is smaller than the sum of its proper divisors (98667156).

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

56290668 is a wasteful number, since it uses less digits than its factorization.

56290668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21662 (or 21660 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 42.

The square root of 56290668 is about 7502.7107101367. The cubic root of 56290668 is about 383.2470325362.

The spelling of 56290668 in words is "fifty-six million, two hundred ninety thousand, six hundred sixty-eight".