56420636 has 12 divisors (see below), whose sum is σ = 99254400. Its totient is φ = 28062240.

The previous prime is 56420627. The next prime is 56420677. The reversal of 56420636 is 63602465.

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, 36161 + ... + 37688.

It is an arithmetic number, because the mean of its divisors is an integer number (8271200).

Almost surely, 2^56420636 is an apocalyptic number.

It is an amenable number.

56420636 is a deficient number, since it is larger than the sum of its proper divisors (42833764).

56420636 is a wasteful number, since it uses less digits than its factorization.

56420636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74044 (or 74042 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

The square root of 56420636 is about 7511.3671192400. The cubic root of 56420636 is about 383.5417620554.

The spelling of 56420636 in words is "fifty-six million, four hundred twenty thousand, six hundred thirty-six".