56774388 has 48 divisors (see below), whose sum is σ = 145022976. Its totient is φ = 17144160.

The previous prime is 56774371. The next prime is 56774401. The reversal of 56774388 is 88347765.

It is a super-2 number, since 2×56774388² = 6446662265549088, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49995 + ... + 51117.

It is an arithmetic number, because the mean of its divisors is an integer number (3021312).

Almost surely, 2^56774388 is an apocalyptic number.

It is an amenable number.

56774388 is an abundant number, since it is smaller than the sum of its proper divisors (88248588).

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

56774388 is a wasteful number, since it uses less digits than its factorization.

56774388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1522 counting only the distinct ones).

The product of its digits is 1128960, while the sum is 48.

The square root of 56774388 is about 7534.8781012038. The cubic root of 56774388 is about 384.3416826433.

The spelling of 56774388 in words is "fifty-six million, seven hundred seventy-four thousand, three hundred eighty-eight".