557947086 has 16 divisors (see below), whose sum is σ = 1126729344. Its totient is φ = 184176504.

The previous prime is 557947081. The next prime is 557947097. The reversal of 557947086 is 680749755.

It is a super-2 number, since 2×557947086² = 622609901551782792, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557947081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 450796 + ... + 452031.

It is an arithmetic number, because the mean of its divisors is an integer number (70420584).

Almost surely, 2^557947086 is an apocalyptic number.

557947086 is an abundant number, since it is smaller than the sum of its proper divisors (568782258).

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

557947086 is a wasteful number, since it uses less digits than its factorization.

557947086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902935.

The product of its (nonzero) digits is 2116800, while the sum is 51.

The square root of 557947086 is about 23620.9035813620. The cubic root of 557947086 is about 823.2486070959.

The spelling of 557947086 in words is "five hundred fifty-seven million, nine hundred forty-seven thousand, eighty-six".