556005613 has 2 divisors, whose sum is σ = 556005614. Its totient is φ = 556005612.

The previous prime is 556005559. The next prime is 556005631. The reversal of 556005613 is 316500655.

Together with next prime (556005631) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 466646404 + 89359209 = 21602^2 + 9453^2 .

It is a cyclic number.

It is not a de Polignac number, because 556005613 - 2²⁹ = 19134701 is a prime.

It is equal to p_29143903 and since 556005613 and 29143903 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556065613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278002806 + 278002807.

It is an arithmetic number, because the mean of its divisors is an integer number (278002807).

Almost surely, 2^556005613 is an apocalyptic number.

It is an amenable number.

556005613 is a deficient number, since it is larger than the sum of its proper divisors (1).

556005613 is an equidigital number, since it uses as much as digits as its factorization.

556005613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13500, while the sum is 31.

The square root of 556005613 is about 23579.7712669144. The cubic root of 556005613 is about 822.2926189469.

The spelling of 556005613 in words is "five hundred fifty-six million, five thousand, six hundred thirteen".