56906020 has 24 divisors (see below), whose sum is σ = 120738744. Its totient is φ = 22526976.

The previous prime is 56905997. The next prime is 56906023. The reversal of 56906020 is 2060965.

It can be written as a sum of positive squares in 4 ways, for example, as 11451456 + 45454564 = 3384^2 + 6742^2 .

It is a super-2 number, since 2×56906020² = 6476590224480800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 56906020.

It is not an unprimeable number, because it can be changed into a prime (56906023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12727 + ... + 16606.

It is an arithmetic number, because the mean of its divisors is an integer number (5030781).

Almost surely, 2^56906020 is an apocalyptic number.

It is an amenable number.

56906020 is an abundant number, since it is smaller than the sum of its proper divisors (63832724).

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

56906020 is a wasteful number, since it uses less digits than its factorization.

56906020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29439 (or 29437 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 56906020 is about 7543.6078901279. The cubic root of 56906020 is about 384.6384867559.

Adding to 56906020 its reverse (2060965), we get a palindrome (58966985).

The spelling of 56906020 in words is "fifty-six million, nine hundred six thousand, twenty".