57695257 has 2 divisors, whose sum is σ = 57695258. Its totient is φ = 57695256.

The previous prime is 57695251. The next prime is 57695269. The reversal of 57695257 is 75259675.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57441241 + 254016 = 7579^2 + 504^2 .

It is a cyclic number.

It is not a de Polignac number, because 57695257 - 2⁷ = 57695129 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57695251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28847628 + 28847629.

It is an arithmetic number, because the mean of its divisors is an integer number (28847629).

Almost surely, 2^57695257 is an apocalyptic number.

It is an amenable number.

57695257 is a deficient number, since it is larger than the sum of its proper divisors (1).

57695257 is an equidigital number, since it uses as much as digits as its factorization.

57695257 is an evil number, because the sum of its binary digits is even.

The product of its digits is 661500, while the sum is 46.

The square root of 57695257 is about 7595.7393978467. The cubic root of 57695257 is about 386.4085292359.

It can be divided in two parts, 5769 and 5257, that added together give a triangular number (11026 = T₁₄₈).

The spelling of 57695257 in words is "fifty-seven million, six hundred ninety-five thousand, two hundred fifty-seven".