56772260 has 24 divisors (see below), whose sum is σ = 119568960. Its totient is φ = 22642784.

The previous prime is 56772251. The next prime is 56772281. The reversal of 56772260 is 6227765.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 56772260.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3227 + ... + 11133.

It is an arithmetic number, because the mean of its divisors is an integer number (4982040).

Almost surely, 2^56772260 is an apocalyptic number.

It is an amenable number.

56772260 is an abundant number, since it is smaller than the sum of its proper divisors (62796700).

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

56772260 is a wasteful number, since it uses less digits than its factorization.

56772260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8275 (or 8273 counting only the distinct ones).

The product of its (nonzero) digits is 35280, while the sum is 35.

The square root of 56772260 is about 7534.7368898987. The cubic root of 56772260 is about 384.3368806580.

It can be divided in two parts, 567 and 72260, that added together give a palindrome (72827).

The spelling of 56772260 in words is "fifty-six million, seven hundred seventy-two thousand, two hundred sixty".