556504369 has 2 divisors, whose sum is σ = 556504370. Its totient is φ = 556504368.

The previous prime is 556504363. The next prime is 556504387. The reversal of 556504369 is 963405655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 461734144 + 94770225 = 21488^2 + 9735^2 .

It is a cyclic number.

It is not a de Polignac number, because 556504369 - 2¹³ = 556496177 is a prime.

It is a super-2 number, since 2×556504369² = 619394225432176322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (556504363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278252184 + 278252185.

It is an arithmetic number, because the mean of its divisors is an integer number (278252185).

Almost surely, 2^556504369 is an apocalyptic number.

It is an amenable number.

556504369 is a deficient number, since it is larger than the sum of its proper divisors (1).

556504369 is an equidigital number, since it uses as much as digits as its factorization.

556504369 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486000, while the sum is 43.

The square root of 556504369 is about 23590.3448257968. The cubic root of 556504369 is about 822.5384203066.

The spelling of 556504369 in words is "five hundred fifty-six million, five hundred four thousand, three hundred sixty-nine".