556172297 has 2 divisors, whose sum is σ = 556172298. Its totient is φ = 556172296.

The previous prime is 556172273. The next prime is 556172347. The reversal of 556172297 is 792271655.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 536200336 + 19971961 = 23156^2 + 4469^2 .

It is a cyclic number.

It is not a de Polignac number, because 556172297 - 2⁶ = 556172233 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (556162297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 278086148 + 278086149.

It is an arithmetic number, because the mean of its divisors is an integer number (278086149).

Almost surely, 2^556172297 is an apocalyptic number.

It is an amenable number.

556172297 is a deficient number, since it is larger than the sum of its proper divisors (1).

556172297 is an equidigital number, since it uses as much as digits as its factorization.

556172297 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 264600, while the sum is 44.

The square root of 556172297 is about 23583.3054723039. The cubic root of 556172297 is about 822.3747819835.

The spelling of 556172297 in words is "five hundred fifty-six million, one hundred seventy-two thousand, two hundred ninety-seven".