57742117 has 2 divisors, whose sum is σ = 57742118. Its totient is φ = 57742116.

The previous prime is 57742031. The next prime is 57742133. The reversal of 57742117 is 71124775.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54154881 + 3587236 = 7359^2 + 1894^2 .

It is a cyclic number.

It is not a de Polignac number, because 57742117 - 2¹⁹ = 57217829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57742147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28871058 + 28871059.

It is an arithmetic number, because the mean of its divisors is an integer number (28871059).

Almost surely, 2^57742117 is an apocalyptic number.

It is an amenable number.

57742117 is a deficient number, since it is larger than the sum of its proper divisors (1).

57742117 is an equidigital number, since it uses as much as digits as its factorization.

57742117 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13720, while the sum is 34.

The square root of 57742117 is about 7598.8233957633. The cubic root of 57742117 is about 386.5131143996.

The spelling of 57742117 in words is "fifty-seven million, seven hundred forty-two thousand, one hundred seventeen".