57398539 has 16 divisors (see below), whose sum is σ = 63737856. Its totient is φ = 51256800.

The previous prime is 57398533. The next prime is 57398557. The reversal of 57398539 is 93589375.

It is a cyclic number.

It is not a de Polignac number, because 57398539 - 2³ = 57398531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 57398492 and 57398501.

It is not an unprimeable number, because it can be changed into a prime (57398531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252744 + ... + 252970.

It is an arithmetic number, because the mean of its divisors is an integer number (3983616).

Almost surely, 2^57398539 is an apocalyptic number.

57398539 is a deficient number, since it is larger than the sum of its proper divisors (6339317).

57398539 is a wasteful number, since it uses less digits than its factorization.

57398539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 546.

The product of its digits is 1020600, while the sum is 49.

The square root of 57398539 is about 7576.1823499702. The cubic root of 57398539 is about 385.7449768315.

The spelling of 57398539 in words is "fifty-seven million, three hundred ninety-eight thousand, five hundred thirty-nine".