556456157 has 2 divisors, whose sum is σ = 556456158. Its totient is φ = 556456156.

The previous prime is 556456133. The next prime is 556456177. The reversal of 556456157 is 751654655.

556456157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 554414116 + 2042041 = 23546^2 + 1429^2 .

It is a cyclic number.

It is not a de Polignac number, because 556456157 - 2⁸ = 556455901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (556456127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278228078 + 278228079.

It is an arithmetic number, because the mean of its divisors is an integer number (278228079).

Almost surely, 2^556456157 is an apocalyptic number.

It is an amenable number.

556456157 is a deficient number, since it is larger than the sum of its proper divisors (1).

556456157 is an equidigital number, since it uses as much as digits as its factorization.

556456157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 630000, while the sum is 44.

The square root of 556456157 is about 23589.3229449257. The cubic root of 556456157 is about 822.5146664544.

The spelling of 556456157 in words is "five hundred fifty-six million, four hundred fifty-six thousand, one hundred fifty-seven".