56166020 has 12 divisors (see below), whose sum is σ = 117948684. Its totient is φ = 22466400.

The previous prime is 56166013. The next prime is 56166043. The reversal of 56166020 is 2066165.

It can be written as a sum of positive squares in 2 ways, for example, as 10549504 + 45616516 = 3248^2 + 6754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1404131 + ... + 1404170.

It is an arithmetic number, because the mean of its divisors is an integer number (9829057).

Almost surely, 2^56166020 is an apocalyptic number.

It is an amenable number.

56166020 is an abundant number, since it is smaller than the sum of its proper divisors (61782664).

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

56166020 is a wasteful number, since it uses less digits than its factorization.

56166020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2808310 (or 2808308 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 56166020 is about 7494.3992421007. The cubic root of 56166020 is about 382.9639407318.

The spelling of 56166020 in words is "fifty-six million, one hundred sixty-six thousand, twenty".