557465780 has 12 divisors (see below), whose sum is σ = 1170678180. Its totient is φ = 222986304.

The previous prime is 557465771. The next prime is 557465813. The reversal of 557465780 is 87564755.

It can be written as a sum of positive squares in 2 ways, for example, as 338780836 + 218684944 = 18406^2 + 14788^2 .

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 13936625 + ... + 13936664.

It is an arithmetic number, because the mean of its divisors is an integer number (97556515).

Almost surely, 2^557465780 is an apocalyptic number.

It is an amenable number.

557465780 is an abundant number, since it is smaller than the sum of its proper divisors (613212400).

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

557465780 is a wasteful number, since it uses less digits than its factorization.

557465780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27873298 (or 27873296 counting only the distinct ones).

The product of its (nonzero) digits is 1176000, while the sum is 47.

The square root of 557465780 is about 23610.7132463210. The cubic root of 557465780 is about 823.0118173272.

The spelling of 557465780 in words is "five hundred fifty-seven million, four hundred sixty-five thousand, seven hundred eighty".