556007161 has 2 divisors, whose sum is σ = 556007162. Its totient is φ = 556007160.

The previous prime is 556007149. The next prime is 556007167. The reversal of 556007161 is 161700655.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 515290000 + 40717161 = 22700^2 + 6381^2 .

It is a cyclic number.

It is not a de Polignac number, because 556007161 - 2²³ = 547618553 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556007167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278003580 + 278003581.

It is an arithmetic number, because the mean of its divisors is an integer number (278003581).

Almost surely, 2^556007161 is an apocalyptic number.

It is an amenable number.

556007161 is a deficient number, since it is larger than the sum of its proper divisors (1).

556007161 is an equidigital number, since it uses as much as digits as its factorization.

556007161 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 556007161 is about 23579.8040916374. The cubic root of 556007161 is about 822.2933820734.

The spelling of 556007161 in words is "five hundred fifty-six million, seven thousand, one hundred sixty-one".