557691587 has 2 divisors, whose sum is σ = 557691588. Its totient is φ = 557691586.

The previous prime is 557691577. The next prime is 557691619. The reversal of 557691587 is 785196755.

557691587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 557691587 - 2⁴ = 557691571 is a prime.

It is a super-2 number, since 2×557691587² = 622039812421157138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557691577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278845793 + 278845794.

It is an arithmetic number, because the mean of its divisors is an integer number (278845794).

Almost surely, 2^557691587 is an apocalyptic number.

557691587 is a deficient number, since it is larger than the sum of its proper divisors (1).

557691587 is an equidigital number, since it uses as much as digits as its factorization.

557691587 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646000, while the sum is 53.

The square root of 557691587 is about 23615.4946380549. The cubic root of 557691587 is about 823.1229253386.

The spelling of 557691587 in words is "five hundred fifty-seven million, six hundred ninety-one thousand, five hundred eighty-seven".