557534531 has 2 divisors, whose sum is σ = 557534532. Its totient is φ = 557534530.

The previous prime is 557534479. The next prime is 557534561. The reversal of 557534531 is 135435755.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-557534531 is a prime.

It is a super-2 number, since 2×557534531² = 621689506514779922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (557534561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278767265 + 278767266.

It is an arithmetic number, because the mean of its divisors is an integer number (278767266).

Almost surely, 2^557534531 is an apocalyptic number.

557534531 is a deficient number, since it is larger than the sum of its proper divisors (1).

557534531 is an equidigital number, since it uses as much as digits as its factorization.

557534531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 157500, while the sum is 38.

The square root of 557534531 is about 23612.1691294976. The cubic root of 557534531 is about 823.0456493348.

The spelling of 557534531 in words is "five hundred fifty-seven million, five hundred thirty-four thousand, five hundred thirty-one".