56021372 has 12 divisors (see below), whose sum is σ = 106949976. Its totient is φ = 25464240.

The previous prime is 56021347. The next prime is 56021377. The reversal of 56021372 is 27312065.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56021377) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 636563 + ... + 636650.

It is an arithmetic number, because the mean of its divisors is an integer number (8912498).

Almost surely, 2^56021372 is an apocalyptic number.

It is an amenable number.

56021372 is a deficient number, since it is larger than the sum of its proper divisors (50928604).

56021372 is a wasteful number, since it uses less digits than its factorization.

56021372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1273228 (or 1273226 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 56021372 is about 7484.7426141451. The cubic root of 56021372 is about 382.6349007990.

The spelling of 56021372 in words is "fifty-six million, twenty-one thousand, three hundred seventy-two".