56689256 has 16 divisors (see below), whose sum is σ = 114468900. Its totient is φ = 26164224.

The previous prime is 56689253. The next prime is 56689261. The reversal of 56689256 is 65298665.

It can be written as a sum of positive squares in 2 ways, for example, as 50268100 + 6421156 = 7090^2 + 2534^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 56689256.

It is not an unprimeable number, because it can be changed into a prime (56689253) 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, 272441 + ... + 272648.

Almost surely, 2^56689256 is an apocalyptic number.

It is an amenable number.

56689256 is an abundant number, since it is smaller than the sum of its proper divisors (57779644).

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

56689256 is a wasteful number, since it uses less digits than its factorization.

56689256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 545108 (or 545104 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The square root of 56689256 is about 7529.2267863307. The cubic root of 56689256 is about 384.1494824563.

The spelling of 56689256 in words is "fifty-six million, six hundred eighty-nine thousand, two hundred fifty-six".