57335561 has 2 divisors, whose sum is σ = 57335562. Its totient is φ = 57335560.

The previous prime is 57335557. The next prime is 57335563. The reversal of 57335561 is 16553375.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46240000 + 11095561 = 6800^2 + 3331^2 .

It is a cyclic number.

It is not a de Polignac number, because 57335561 - 2² = 57335557 is a prime.

Together with 57335563, 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 (57335563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28667780 + 28667781.

It is an arithmetic number, because the mean of its divisors is an integer number (28667781).

Almost surely, 2^57335561 is an apocalyptic number.

It is an amenable number.

57335561 is a deficient number, since it is larger than the sum of its proper divisors (1).

57335561 is an equidigital number, since it uses as much as digits as its factorization.

57335561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 47250, while the sum is 35.

The square root of 57335561 is about 7572.0248943067. The cubic root of 57335561 is about 385.6038446821.

The spelling of 57335561 in words is "fifty-seven million, three hundred thirty-five thousand, five hundred sixty-one".