57120399 has 12 divisors (see below), whose sum is σ = 94294096. Its totient is φ = 32640192.

The previous prime is 57120377. The next prime is 57120419. The reversal of 57120399 is 99302175.

It is not a de Polignac number, because 57120399 - 2⁵ = 57120367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57120359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453274 + ... + 453399.

Almost surely, 2^57120399 is an apocalyptic number.

57120399 is a deficient number, since it is larger than the sum of its proper divisors (37173697).

57120399 is a wasteful number, since it uses less digits than its factorization.

57120399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906686 (or 906683 counting only the distinct ones).

The product of its (nonzero) digits is 17010, while the sum is 36.

The square root of 57120399 is about 7557.8038476796. The cubic root of 57120399 is about 385.1208908043.

The spelling of 57120399 in words is "fifty-seven million, one hundred twenty thousand, three hundred ninety-nine".