57139896 has 64 divisors (see below), whose sum is σ = 159667200. Its totient is φ = 16889600.

The previous prime is 57139891. The next prime is 57139903. The reversal of 57139896 is 69893175.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57139891) 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, 8185 + ... + 13463.

It is an arithmetic number, because the mean of its divisors is an integer number (2494800).

Almost surely, 2^57139896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 57139896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79833600).

57139896 is an abundant number, since it is smaller than the sum of its proper divisors (102527304).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57139896 is a wasteful number, since it uses less digits than its factorization.

57139896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5340 (or 5336 counting only the distinct ones).

The product of its digits is 408240, while the sum is 48.

The square root of 57139896 is about 7559.0935964572. The cubic root of 57139896 is about 385.1647038027.

The spelling of 57139896 in words is "fifty-seven million, one hundred thirty-nine thousand, eight hundred ninety-six".