57318511 has 2 divisors, whose sum is σ = 57318512. Its totient is φ = 57318510.

The previous prime is 57318479. The next prime is 57318517. The reversal of 57318511 is 11581375.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57318511 - 2⁵ = 57318479 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57318517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28659255 + 28659256.

It is an arithmetic number, because the mean of its divisors is an integer number (28659256).

Almost surely, 2^57318511 is an apocalyptic number.

57318511 is a deficient number, since it is larger than the sum of its proper divisors (1).

57318511 is an equidigital number, since it uses as much as digits as its factorization.

57318511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4200, while the sum is 31.

The square root of 57318511 is about 7570.8989558704. The cubic root of 57318511 is about 385.5656182758.

Adding to 57318511 its reverse (11581375), we get a palindrome (68899886).

The spelling of 57318511 in words is "fifty-seven million, three hundred eighteen thousand, five hundred eleven".