57522397 has 2 divisors, whose sum is σ = 57522398. Its totient is φ = 57522396.

The previous prime is 57522319. The next prime is 57522401. The reversal of 57522397 is 79322575.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 56640676 + 881721 = 7526^2 + 939^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57522397 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57522497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28761198 + 28761199.

It is an arithmetic number, because the mean of its divisors is an integer number (28761199).

Almost surely, 2^57522397 is an apocalyptic number.

It is an amenable number.

57522397 is a deficient number, since it is larger than the sum of its proper divisors (1).

57522397 is an equidigital number, since it uses as much as digits as its factorization.

57522397 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 132300, while the sum is 40.

The square root of 57522397 is about 7584.3521147162. The cubic root of 57522397 is about 386.0222386894.

The spelling of 57522397 in words is "fifty-seven million, five hundred twenty-two thousand, three hundred ninety-seven".