57572539 has 2 divisors, whose sum is σ = 57572540. Its totient is φ = 57572538.

The previous prime is 57572521. The next prime is 57572561. The reversal of 57572539 is 93527575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57572539 - 2⁹ = 57572027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57572495 and 57572504.

It is not a weakly prime, because it can be changed into another prime (57572839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28786269 + 28786270.

It is an arithmetic number, because the mean of its divisors is an integer number (28786270).

Almost surely, 2^57572539 is an apocalyptic number.

57572539 is a deficient number, since it is larger than the sum of its proper divisors (1).

57572539 is an equidigital number, since it uses as much as digits as its factorization.

57572539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 330750, while the sum is 43.

The square root of 57572539 is about 7587.6570164973. The cubic root of 57572539 is about 386.1343706975.

The spelling of 57572539 in words is "fifty-seven million, five hundred seventy-two thousand, five hundred thirty-nine".