57816901 has 2 divisors, whose sum is σ = 57816902. Its totient is φ = 57816900.

The previous prime is 57816893. The next prime is 57816937. The reversal of 57816901 is 10961875.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54375876 + 3441025 = 7374^2 + 1855^2 .

It is a cyclic number.

It is not a de Polignac number, because 57816901 - 2³ = 57816893 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57816961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28908450 + 28908451.

It is an arithmetic number, because the mean of its divisors is an integer number (28908451).

Almost surely, 2^57816901 is an apocalyptic number.

It is an amenable number.

57816901 is a deficient number, since it is larger than the sum of its proper divisors (1).

57816901 is an equidigital number, since it uses as much as digits as its factorization.

57816901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 37.

The square root of 57816901 is about 7603.7425653424. The cubic root of 57816901 is about 386.6799049999.

The spelling of 57816901 in words is "fifty-seven million, eight hundred sixteen thousand, nine hundred one".