56291256 has 96 divisors (see below), whose sum is σ = 176941440. Its totient is φ = 15833664.

The previous prime is 56291231. The next prime is 56291293. The reversal of 56291256 is 65219265.

56291256 is a `hidden beast` number, since 5 + 629 + 1 + 25 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 56291256.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32935 + ... + 34601.

It is an arithmetic number, because the mean of its divisors is an integer number (1843140).

Almost surely, 2^56291256 is an apocalyptic number.

56291256 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56291256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88470720).

56291256 is an abundant number, since it is smaller than the sum of its proper divisors (120650184).

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

56291256 is a wasteful number, since it uses less digits than its factorization.

56291256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1753 (or 1746 counting only the distinct ones).

The product of its digits is 32400, while the sum is 36.

The square root of 56291256 is about 7502.7498958715. The cubic root of 56291256 is about 383.2483669698.

The spelling of 56291256 in words is "fifty-six million, two hundred ninety-one thousand, two hundred fifty-six".