57247456 has 48 divisors (see below), whose sum is σ = 135596160. Its totient is φ = 23241600.

The previous prime is 57247453. The next prime is 57247459. The reversal of 57247456 is 65474275.

It is an interprime number because it is at equal distance from previous prime (57247453) and next prime (57247459).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57247451) 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, 2470 + ... + 10981.

It is an arithmetic number, because the mean of its divisors is an integer number (2824920).

Almost surely, 2^57247456 is an apocalyptic number.

57247456 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

57247456 is an abundant number, since it is smaller than the sum of its proper divisors (78348704).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

57247456 is a wasteful number, since it uses less digits than its factorization.

57247456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13487 (or 13479 counting only the distinct ones).

The product of its digits is 235200, while the sum is 40.

The square root of 57247456 is about 7566.2048610912. The cubic root of 57247456 is about 385.4062300143.

The spelling of 57247456 in words is "fifty-seven million, two hundred forty-seven thousand, four hundred fifty-six".