57122201 has 2 divisors, whose sum is σ = 57122202. Its totient is φ = 57122200.

The previous prime is 57122173. The next prime is 57122203. The reversal of 57122201 is 10222175.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52940176 + 4182025 = 7276^2 + 2045^2 .

It is a cyclic number.

It is not a de Polignac number, because 57122201 - 2⁶ = 57122137 is a prime.

Together with 57122203, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57122203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28561100 + 28561101.

It is an arithmetic number, because the mean of its divisors is an integer number (28561101).

Almost surely, 2^57122201 is an apocalyptic number.

It is an amenable number.

57122201 is a deficient number, since it is larger than the sum of its proper divisors (1).

57122201 is an equidigital number, since it uses as much as digits as its factorization.

57122201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 57122201 is about 7557.9230612649. The cubic root of 57122201 is about 385.1249406158.

Adding to 57122201 its reverse (10222175), we get a palindrome (67344376).

The spelling of 57122201 in words is "fifty-seven million, one hundred twenty-two thousand, two hundred one".