56851506 has 24 divisors (see below), whose sum is σ = 124451964. Its totient is φ = 18754560.

The previous prime is 56851453. The next prime is 56851507. The reversal of 56851506 is 60515865.

It can be written as a sum of positive squares in 2 ways, for example, as 56025225 + 826281 = 7485^2 + 909^2 .

It is not an unprimeable number, because it can be changed into a prime (56851507) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14535 + ... + 18026.

Almost surely, 2^56851506 is an apocalyptic number.

56851506 is an abundant number, since it is smaller than the sum of its proper divisors (67600458).

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

56851506 is a wasteful number, since it uses less digits than its factorization.

56851506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32666 (or 32663 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 56851506 is about 7539.9937665757. The cubic root of 56851506 is about 384.5156240569.

The spelling of 56851506 in words is "fifty-six million, eight hundred fifty-one thousand, five hundred six".