57717427 has 2 divisors, whose sum is σ = 57717428. Its totient is φ = 57717426.

The previous prime is 57717409. The next prime is 57717437. The reversal of 57717427 is 72471775.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57717427 - 2¹¹ = 57715379 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57717427.

It is not a weakly prime, because it can be changed into another prime (57717437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28858713 + 28858714.

It is an arithmetic number, because the mean of its divisors is an integer number (28858714).

Almost surely, 2^57717427 is an apocalyptic number.

57717427 is a deficient number, since it is larger than the sum of its proper divisors (1).

57717427 is an equidigital number, since it uses as much as digits as its factorization.

57717427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96040, while the sum is 40.

The square root of 57717427 is about 7597.1986284419. The cubic root of 57717427 is about 386.4580167241.

The spelling of 57717427 in words is "fifty-seven million, seven hundred seventeen thousand, four hundred twenty-seven".