556147057 has 2 divisors, whose sum is σ = 556147058. Its totient is φ = 556147056.

The previous prime is 556147021. The next prime is 556147087. The reversal of 556147057 is 750741655.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543869041 + 12278016 = 23321^2 + 3504^2 .

It is a cyclic number.

It is not a de Polignac number, because 556147057 - 2²⁷ = 421929329 is a prime.

It is a super-2 number, since 2×556147057² = 618599098019522498, which contains 22 as substring.

It is equal to p_29150878 and since 556147057 and 29150878 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (556147087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278073528 + 278073529.

It is an arithmetic number, because the mean of its divisors is an integer number (278073529).

Almost surely, 2^556147057 is an apocalyptic number.

It is an amenable number.

556147057 is a deficient number, since it is larger than the sum of its proper divisors (1).

556147057 is an equidigital number, since it uses as much as digits as its factorization.

556147057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 147000, while the sum is 40.

The square root of 556147057 is about 23582.7703419255. The cubic root of 556147057 is about 822.3623415619.

The spelling of 556147057 in words is "five hundred fifty-six million, one hundred forty-seven thousand, fifty-seven".