57240751 has 8 divisors (see below), whose sum is σ = 62698320. Its totient is φ = 52015488.

The previous prime is 57240731. The next prime is 57240763. The reversal of 57240751 is 15704275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57240751 - 2²⁵ = 23686319 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 (57240731) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 57561 + ... + 58546.

It is an arithmetic number, because the mean of its divisors is an integer number (7837290).

Almost surely, 2^57240751 is an apocalyptic number.

57240751 is a deficient number, since it is larger than the sum of its proper divisors (5457569).

57240751 is a wasteful number, since it uses less digits than its factorization.

57240751 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116153.

The product of its (nonzero) digits is 9800, while the sum is 31.

The square root of 57240751 is about 7565.7617594000. The cubic root of 57240751 is about 385.3911827682.

The spelling of 57240751 in words is "fifty-seven million, two hundred forty thousand, seven hundred fifty-one".