57817061 has 2 divisors, whose sum is σ = 57817062. Its totient is φ = 57817060.

The previous prime is 57817049. The next prime is 57817063. The reversal of 57817061 is 16071875.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57668836 + 148225 = 7594^2 + 385^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57817061 is a prime.

Together with 57817063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57817063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28908530 + 28908531.

It is an arithmetic number, because the mean of its divisors is an integer number (28908531).

Almost surely, 2^57817061 is an apocalyptic number.

It is an amenable number.

57817061 is a deficient number, since it is larger than the sum of its proper divisors (1).

57817061 is an equidigital number, since it uses as much as digits as its factorization.

57817061 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 35.

The square root of 57817061 is about 7603.7530864699. The cubic root of 57817061 is about 386.6802616934.

The spelling of 57817061 in words is "fifty-seven million, eight hundred seventeen thousand, sixty-one".