557905093 has 2 divisors, whose sum is σ = 557905094. Its totient is φ = 557905092.

The previous prime is 557905067. The next prime is 557905097. The reversal of 557905093 is 390509755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554743809 + 3161284 = 23553^2 + 1778^2 .

It is a cyclic number.

It is not a de Polignac number, because 557905093 - 2²⁵ = 524350661 is a prime.

It is a super-2 number, since 2×557905093² = 622516185590677298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (557905097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278952546 + 278952547.

It is an arithmetic number, because the mean of its divisors is an integer number (278952547).

Almost surely, 2^557905093 is an apocalyptic number.

It is an amenable number.

557905093 is a deficient number, since it is larger than the sum of its proper divisors (1).

557905093 is an equidigital number, since it uses as much as digits as its factorization.

557905093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 212625, while the sum is 43.

The square root of 557905093 is about 23620.0146697668. The cubic root of 557905093 is about 823.2279530787.

The spelling of 557905093 in words is "five hundred fifty-seven million, nine hundred five thousand, ninety-three".