57139296 has 24 divisors (see below), whose sum is σ = 149990904. Its totient is φ = 19046400.

The previous prime is 57139279. The next prime is 57139297. The reversal of 57139296 is 69293175.

It is a tau number, because it is divible by the number of its divisors (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57139297) 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, 297505 + ... + 297696.

It is an arithmetic number, because the mean of its divisors is an integer number (6249621).

Almost surely, 2^57139296 is an apocalyptic number.

It is an amenable number.

57139296 is an abundant number, since it is smaller than the sum of its proper divisors (92851608).

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

57139296 is a wasteful number, since it uses less digits than its factorization.

57139296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 595214 (or 595206 counting only the distinct ones).

The product of its digits is 102060, while the sum is 42.

The square root of 57139296 is about 7559.0539090550. The cubic root of 57139296 is about 385.1633556516.

The spelling of 57139296 in words is "fifty-seven million, one hundred thirty-nine thousand, two hundred ninety-six".