56409256 has 8 divisors (see below), whose sum is σ = 105767370. Its totient is φ = 28204624.

The previous prime is 56409253. The next prime is 56409257. The reversal of 56409256 is 65290465.

It can be written as a sum of positive squares in only one way, i.e., 55264356 + 1144900 = 7434^2 + 1070^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (56409253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3525571 + ... + 3525586.

Almost surely, 2^56409256 is an apocalyptic number.

It is an amenable number.

56409256 is a deficient number, since it is larger than the sum of its proper divisors (49358114).

56409256 is a wasteful number, since it uses less digits than its factorization.

56409256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7051163 (or 7051159 counting only the distinct ones).

The product of its (nonzero) digits is 64800, while the sum is 37.

The square root of 56409256 is about 7510.6095624789. The cubic root of 56409256 is about 383.5159736262.

It can be divided in two parts, 56409 and 256, that added together give a palindrome (56665).

The spelling of 56409256 in words is "fifty-six million, four hundred nine thousand, two hundred fifty-six".