57700681 has 2 divisors, whose sum is σ = 57700682. Its totient is φ = 57700680.

The previous prime is 57700667. The next prime is 57700717. The reversal of 57700681 is 18600775.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53056656 + 4644025 = 7284^2 + 2155^2 .

It is a cyclic number.

It is not a de Polignac number, because 57700681 - 2⁷ = 57700553 is a prime.

It is a super-2 number, since 2×57700681² = 6658737175727522, which contains 22 as substring.

It is equal to p_3433669 and since 57700681 and 3433669 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (57700661) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28850340 + 28850341.

It is an arithmetic number, because the mean of its divisors is an integer number (28850341).

Almost surely, 2^57700681 is an apocalyptic number.

It is an amenable number.

57700681 is a deficient number, since it is larger than the sum of its proper divisors (1).

57700681 is an equidigital number, since it uses as much as digits as its factorization.

57700681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 57700681 is about 7596.0964317207. The cubic root of 57700681 is about 386.4206377655.

The spelling of 57700681 in words is "fifty-seven million, seven hundred thousand, six hundred eighty-one".