556465631 has 2 divisors, whose sum is σ = 556465632. Its totient is φ = 556465630.

The previous prime is 556465627. The next prime is 556465669. The reversal of 556465631 is 136564655.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 556465631 - 2² = 556465627 is a prime.

It is a super-2 number, since 2×556465631² = 619307996968456322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556465831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278232815 + 278232816.

It is an arithmetic number, because the mean of its divisors is an integer number (278232816).

Almost surely, 2^556465631 is an apocalyptic number.

556465631 is a deficient number, since it is larger than the sum of its proper divisors (1).

556465631 is an equidigital number, since it uses as much as digits as its factorization.

556465631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 324000, while the sum is 41.

The square root of 556465631 is about 23589.5237552605. The cubic root of 556465631 is about 822.5193343632.

The spelling of 556465631 in words is "five hundred fifty-six million, four hundred sixty-five thousand, six hundred thirty-one".