56720502 has 12 divisors (see below), whose sum is σ = 122894460. Its totient is φ = 18906828.

The previous prime is 56720497. The next prime is 56720537. The reversal of 56720502 is 20502765.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1575552 + ... + 1575587.

It is an arithmetic number, because the mean of its divisors is an integer number (10241205).

Almost surely, 2^56720502 is an apocalyptic number.

56720502 is an abundant number, since it is smaller than the sum of its proper divisors (66173958).

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

56720502 is a wasteful number, since it uses less digits than its factorization.

56720502 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3151147 (or 3151144 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 56720502 is about 7531.3014811518. The cubic root of 56720502 is about 384.2200480328.

The spelling of 56720502 in words is "fifty-six million, seven hundred twenty thousand, five hundred two".