56313280 has 28 divisors (see below), whose sum is σ = 134096760. Its totient is φ = 22525184.

The previous prime is 56313277. The next prime is 56313287. The reversal of 56313280 is 8231365.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56313287) 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, 87670 + ... + 88309.

It is an arithmetic number, because the mean of its divisors is an integer number (4789170).

Almost surely, 2^56313280 is an apocalyptic number.

It is an amenable number.

56313280 is an abundant number, since it is smaller than the sum of its proper divisors (77783480).

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

56313280 is a wasteful number, since it uses less digits than its factorization.

56313280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175996 (or 175986 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56313280 is about 7504.2174808570. The cubic root of 56313280 is about 383.2983425318.

It can be divided in two parts, 5631 and 3280, that added together give a triangular number (8911 = T₁₃₃).

The spelling of 56313280 in words is "fifty-six million, three hundred thirteen thousand, two hundred eighty".