57465257 has 2 divisors, whose sum is σ = 57465258. Its totient is φ = 57465256.

The previous prime is 57465251. The next prime is 57465259. The reversal of 57465257 is 75256475.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53348416 + 4116841 = 7304^2 + 2029^2 .

It is a cyclic number.

It is not a de Polignac number, because 57465257 - 2⁶ = 57465193 is a prime.

Together with 57465259, 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 (57465251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28732628 + 28732629.

It is an arithmetic number, because the mean of its divisors is an integer number (28732629).

Almost surely, 2^57465257 is an apocalyptic number.

It is an amenable number.

57465257 is a deficient number, since it is larger than the sum of its proper divisors (1).

57465257 is an equidigital number, since it uses as much as digits as its factorization.

57465257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 294000, while the sum is 41.

The square root of 57465257 is about 7580.5842123150. The cubic root of 57465257 is about 385.8943776621.

The spelling of 57465257 in words is "fifty-seven million, four hundred sixty-five thousand, two hundred fifty-seven".