56690420 has 12 divisors (see below), whose sum is σ = 119049924. Its totient is φ = 22676160.

The previous prime is 56690407. The next prime is 56690437. The reversal of 56690420 is 2409665.

It can be written as a sum of positive squares in 2 ways, for example, as 16418704 + 40271716 = 4052^2 + 6346^2 .

It is a hoax number, since the sum of its digits (32) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

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, 1417241 + ... + 1417280.

It is an arithmetic number, because the mean of its divisors is an integer number (9920827).

Almost surely, 2^56690420 is an apocalyptic number.

It is an amenable number.

56690420 is an abundant number, since it is smaller than the sum of its proper divisors (62359504).

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

56690420 is a wasteful number, since it uses less digits than its factorization.

56690420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2834530 (or 2834528 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 56690420 is about 7529.3040847080. The cubic root of 56690420 is about 384.1521116843.

The spelling of 56690420 in words is "fifty-six million, six hundred ninety thousand, four hundred twenty".