57695581 has 2 divisors, whose sum is σ = 57695582. Its totient is φ = 57695580.

The previous prime is 57695579. The next prime is 57695591. The reversal of 57695581 is 18559675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53158681 + 4536900 = 7291^2 + 2130^2 .

It is a cyclic number.

It is not a de Polignac number, because 57695581 - 2¹ = 57695579 is a prime.

It is a super-2 number, since 2×57695581² = 6657560133855122, which contains 22 as substring.

Together with 57695579, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57695531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28847790 + 28847791.

It is an arithmetic number, because the mean of its divisors is an integer number (28847791).

Almost surely, 2^57695581 is an apocalyptic number.

It is an amenable number.

57695581 is a deficient number, since it is larger than the sum of its proper divisors (1).

57695581 is an equidigital number, since it uses as much as digits as its factorization.

57695581 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 378000, while the sum is 46.

The square root of 57695581 is about 7595.7607255626. The cubic root of 57695581 is about 386.4092525543.

The spelling of 57695581 in words is "fifty-seven million, six hundred ninety-five thousand, five hundred eighty-one".