57312523 has 2 divisors, whose sum is σ = 57312524. Its totient is φ = 57312522.

The previous prime is 57312509. The next prime is 57312533. The reversal of 57312523 is 32521375.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57312523 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57312491 and 57312500.

It is not a weakly prime, because it can be changed into another prime (57312533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28656261 + 28656262.

It is an arithmetic number, because the mean of its divisors is an integer number (28656262).

Almost surely, 2^57312523 is an apocalyptic number.

57312523 is a deficient number, since it is larger than the sum of its proper divisors (1).

57312523 is an equidigital number, since it uses as much as digits as its factorization.

57312523 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6300, while the sum is 28.

The square root of 57312523 is about 7570.5034839170. The cubic root of 57312523 is about 385.5521912736.

Adding to 57312523 its reverse (32521375), we get a palindrome (89833898).

The spelling of 57312523 in words is "fifty-seven million, three hundred twelve thousand, five hundred twenty-three".