57122297 has 2 divisors, whose sum is σ = 57122298. Its totient is φ = 57122296.

The previous prime is 57122251. The next prime is 57122321. The reversal of 57122297 is 79222175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55785961 + 1336336 = 7469^2 + 1156^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57122297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57122237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28561148 + 28561149.

It is an arithmetic number, because the mean of its divisors is an integer number (28561149).

Almost surely, 2^57122297 is an apocalyptic number.

It is an amenable number.

57122297 is a deficient number, since it is larger than the sum of its proper divisors (1).

57122297 is an equidigital number, since it uses as much as digits as its factorization.

57122297 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17640, while the sum is 35.

The square root of 57122297 is about 7557.9294122134. The cubic root of 57122297 is about 385.1251563636.

The spelling of 57122297 in words is "fifty-seven million, one hundred twenty-two thousand, two hundred ninety-seven".