56567780 has 12 divisors (see below), whose sum is σ = 118792380. Its totient is φ = 22627104.

The previous prime is 56567779. The next prime is 56567803. The reversal of 56567780 is 8776565.

It can be written as a sum of positive squares in 2 ways, for example, as 18028516 + 38539264 = 4246^2 + 6208^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1414175 + ... + 1414214.

It is an arithmetic number, because the mean of its divisors is an integer number (9899365).

Almost surely, 2^56567780 is an apocalyptic number.

It is an amenable number.

56567780 is an abundant number, since it is smaller than the sum of its proper divisors (62224600).

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

56567780 is a wasteful number, since it uses less digits than its factorization.

56567780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2828398 (or 2828396 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 44.

The square root of 56567780 is about 7521.1554963317. The cubic root of 56567780 is about 383.8748959508.

The spelling of 56567780 in words is "fifty-six million, five hundred sixty-seven thousand, seven hundred eighty".