57352539 has 4 divisors (see below), whose sum is σ = 76470056. Its totient is φ = 38235024.

The previous prime is 57352531. The next prime is 57352541. The reversal of 57352539 is 93525375.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 57352539 - 2³ = 57352531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57352497 and 57352506.

It is not an unprimeable number, because it can be changed into a prime (57352531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9558754 + ... + 9558759.

It is an arithmetic number, because the mean of its divisors is an integer number (19117514).

Almost surely, 2^57352539 is an apocalyptic number.

57352539 is a deficient number, since it is larger than the sum of its proper divisors (19117517).

57352539 is a wasteful number, since it uses less digits than its factorization.

57352539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19117516.

The product of its digits is 141750, while the sum is 39.

The square root of 57352539 is about 7573.1459117067. The cubic root of 57352539 is about 385.6419021335.

The spelling of 57352539 in words is "fifty-seven million, three hundred fifty-two thousand, five hundred thirty-nine".