56774320 has 20 divisors (see below), whose sum is σ = 132000480. Its totient is φ = 22709696.

The previous prime is 56774309. The next prime is 56774329. The reversal of 56774320 is 2347765.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×56774320² = 6446646822924800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (56774329) 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, 354760 + ... + 354919.

It is an arithmetic number, because the mean of its divisors is an integer number (6600024).

Almost surely, 2^56774320 is an apocalyptic number.

It is an amenable number.

56774320 is an abundant number, since it is smaller than the sum of its proper divisors (75226160).

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

56774320 is a wasteful number, since it uses less digits than its factorization.

56774320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709692 (or 709686 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 34.

The square root of 56774320 is about 7534.8735888534. The cubic root of 56774320 is about 384.3415291982.

The spelling of 56774320 in words is "fifty-six million, seven hundred seventy-four thousand, three hundred twenty".