57240753 has 16 divisors (see below), whose sum is σ = 78078336. Its totient is φ = 37290240.

The previous prime is 57240731. The next prime is 57240763. The reversal of 57240753 is 35704275.

It is not a de Polignac number, because 57240753 - 2⁸ = 57240497 is a prime.

It is a super-3 number, since 3×57240753³ (a number of 24 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (57240763) 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, 29625 + ... + 31497.

It is an arithmetic number, because the mean of its divisors is an integer number (4879896).

Almost surely, 2^57240753 is an apocalyptic number.

It is an amenable number.

57240753 is a deficient number, since it is larger than the sum of its proper divisors (20837583).

57240753 is a wasteful number, since it uses less digits than its factorization.

57240753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2104.

The product of its (nonzero) digits is 29400, while the sum is 33.

The square root of 57240753 is about 7565.7618915744. The cubic root of 57240753 is about 385.3911872568.

The spelling of 57240753 in words is "fifty-seven million, two hundred forty thousand, seven hundred fifty-three".