557660780 has 24 divisors (see below), whose sum is σ = 1190288400. Its totient is φ = 219407040.

The previous prime is 557660771. The next prime is 557660791. The reversal of 557660780 is 87066755.

557660780 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 227330 + ... + 229769.

It is an arithmetic number, because the mean of its divisors is an integer number (49595350).

Almost surely, 2^557660780 is an apocalyptic number.

It is an amenable number.

557660780 is an abundant number, since it is smaller than the sum of its proper divisors (632627620).

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

557660780 is a wasteful number, since it uses less digits than its factorization.

557660780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457169 (or 457167 counting only the distinct ones).

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

The square root of 557660780 is about 23614.8423666134. The cubic root of 557660780 is about 823.1077685653.

The spelling of 557660780 in words is "five hundred fifty-seven million, six hundred sixty thousand, seven hundred eighty".