56501236 has 24 divisors (see below), whose sum is σ = 108239040. Its totient is φ = 25593600.

The previous prime is 56501227. The next prime is 56501261. The reversal of 56501236 is 63210565.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11620 + ... + 15748.

It is an arithmetic number, because the mean of its divisors is an integer number (4509960).

Almost surely, 2^56501236 is an apocalyptic number.

It is an amenable number.

56501236 is a deficient number, since it is larger than the sum of its proper divisors (51737804).

56501236 is a wasteful number, since it uses less digits than its factorization.

56501236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455 (or 4453 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 56501236 is about 7516.7304062338. The cubic root of 56501236 is about 383.7243120310.

It can be divided in two parts, 5650123 and 6, that added together give a square (5650129 = 2377²).

The spelling of 56501236 in words is "fifty-six million, five hundred one thousand, two hundred thirty-six".