56319156 has 18 divisors (see below), whose sum is σ = 142362402. Its totient is φ = 18773040.

The previous prime is 56319149. The next prime is 56319163. The reversal of 56319156 is 65191365.

56319156 is a `hidden beast` number, since 5 + 631 + 9 + 15 + 6 = 666.

It is an interprime number because it is at equal distance from previous prime (56319149) and next prime (56319163).

It can be written as a sum of positive squares in only one way, i.e., 43956900 + 12362256 = 6630^2 + 3516^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1564421 = 56319156 / (5 + 6 + 3 + 1 + 9 + 1 + 5 + 6).

It is a self number, because there is not a number n which added to its sum of digits gives 56319156.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 782175 + ... + 782246.

Almost surely, 2^56319156 is an apocalyptic number.

It is an amenable number.

56319156 is an abundant number, since it is smaller than the sum of its proper divisors (86043246).

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

56319156 is a wasteful number, since it uses less digits than its factorization.

56319156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564431 (or 1564426 counting only the distinct ones).

The product of its digits is 24300, while the sum is 36.

The square root of 56319156 is about 7504.6089838179. The cubic root of 56319156 is about 383.3116738024.

The spelling of 56319156 in words is "fifty-six million, three hundred nineteen thousand, one hundred fifty-six".