57065537 has 2 divisors, whose sum is σ = 57065538. Its totient is φ = 57065536.

The previous prime is 57065521. The next prime is 57065557. The reversal of 57065537 is 73556075.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54405376 + 2660161 = 7376^2 + 1631^2 .

It is a cyclic number.

It is not a de Polignac number, because 57065537 - 2⁴ = 57065521 is a prime.

It is a Chen prime.

It is equal to p_3398087 and since 57065537 and 3398087 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57065537.

It is not a weakly prime, because it can be changed into another prime (57065557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28532768 + 28532769.

It is an arithmetic number, because the mean of its divisors is an integer number (28532769).

Almost surely, 2^57065537 is an apocalyptic number.

It is an amenable number.

57065537 is a deficient number, since it is larger than the sum of its proper divisors (1).

57065537 is an equidigital number, since it uses as much as digits as its factorization.

57065537 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110250, while the sum is 38.

The square root of 57065537 is about 7554.1734822547. The cubic root of 57065537 is about 384.9975532537.

The spelling of 57065537 in words is "fifty-seven million, sixty-five thousand, five hundred thirty-seven".