57244747 has 8 divisors (see below), whose sum is σ = 65540576. Its totient is φ = 48978432.

The previous prime is 57244741. The next prime is 57244771. The reversal of 57244747 is 74744275.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57244747 is a prime.

It is a super-2 number, since 2×57244747² = 6553922118188018, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57244741) 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, 3048 + ... + 11125.

It is an arithmetic number, because the mean of its divisors is an integer number (8192572).

Almost surely, 2^57244747 is an apocalyptic number.

57244747 is a deficient number, since it is larger than the sum of its proper divisors (8295829).

57244747 is a wasteful number, since it uses less digits than its factorization.

57244747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14757.

The product of its digits is 219520, while the sum is 40.

The square root of 57244747 is about 7566.0258392369. The cubic root of 57244747 is about 385.4001506644.

The spelling of 57244747 in words is "fifty-seven million, two hundred forty-four thousand, seven hundred forty-seven".