57540539 has 8 divisors (see below), whose sum is σ = 65875200. Its totient is φ = 49234536.

The previous prime is 57540523. The next prime is 57540541. The reversal of 57540539 is 93504575.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57540539 - 2⁴ = 57540523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57540559) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2669 + ... + 11054.

It is an arithmetic number, because the mean of its divisors is an integer number (8234400).

Almost surely, 2^57540539 is an apocalyptic number.

57540539 is a deficient number, since it is larger than the sum of its proper divisors (8334661).

57540539 is a wasteful number, since it uses less digits than its factorization.

57540539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14329.

The product of its (nonzero) digits is 94500, while the sum is 38.

The square root of 57540539 is about 7585.5480355740. The cubic root of 57540539 is about 386.0628169667.

It can be divided in two parts, 575 and 40539, that added together give a palindrome (41114).

The spelling of 57540539 in words is "fifty-seven million, five hundred forty thousand, five hundred thirty-nine".