557060660 has 24 divisors (see below), whose sum is σ = 1259814696. Its totient is φ = 205683840.

The previous prime is 557060653. The next prime is 557060671. The reversal of 557060660 is 66060755.

It can be written as a sum of positive squares in 4 ways, for example, as 289444 + 556771216 = 538^2 + 23596^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 557060660.

It is a congruent number.

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, 1071011 + ... + 1071530.

It is an arithmetic number, because the mean of its divisors is an integer number (52492279).

Almost surely, 2^557060660 is an apocalyptic number.

It is an amenable number.

557060660 is an abundant number, since it is smaller than the sum of its proper divisors (702754036).

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

557060660 is a wasteful number, since it uses less digits than its factorization.

557060660 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2142563 (or 2142561 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 557060660 is about 23602.1325307693. The cubic root of 557060660 is about 822.8124033846.

The spelling of 557060660 in words is "five hundred fifty-seven million, sixty thousand, six hundred sixty".