57069393 has 16 divisors (see below), whose sum is σ = 78074496. Its totient is φ = 37065600.

The previous prime is 57069379. The next prime is 57069403. The reversal of 57069393 is 39396075.

It is not a de Polignac number, because 57069393 - 2⁴ = 57069377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57061393) 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, 22821 + ... + 25197.

It is an arithmetic number, because the mean of its divisors is an integer number (4879656).

Almost surely, 2^57069393 is an apocalyptic number.

57069393 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

57069393 is a deficient number, since it is larger than the sum of its proper divisors (21005103).

57069393 is a wasteful number, since it uses less digits than its factorization.

57069393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2584.

The product of its (nonzero) digits is 153090, while the sum is 42.

The square root of 57069393 is about 7554.4287010998. The cubic root of 57069393 is about 385.0062246703.

The spelling of 57069393 in words is "fifty-seven million, sixty-nine thousand, three hundred ninety-three".