557991070 has 32 divisors (see below), whose sum is σ = 1236166848. Its totient is φ = 176594688.

The previous prime is 557991053. The next prime is 557991089. The reversal of 557991070 is 70199755.

It is a super-2 number, since 2×557991070² = 622708068399489800, which contains 22 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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 15 ways as a sum of consecutive naturals, for example, 305679 + ... + 307498.

It is an arithmetic number, because the mean of its divisors is an integer number (38630214).

Almost surely, 2^557991070 is an apocalyptic number.

557991070 is an abundant number, since it is smaller than the sum of its proper divisors (678175778).

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

557991070 is a wasteful number, since it uses less digits than its factorization.

557991070 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613204.

The product of its (nonzero) digits is 99225, while the sum is 43.

The square root of 557991070 is about 23621.8346027568. The cubic root of 557991070 is about 823.2702392638.

The spelling of 557991070 in words is "five hundred fifty-seven million, nine hundred ninety-one thousand, seventy".