57568481 has 4 divisors (see below), whose sum is σ = 57583812. Its totient is φ = 57553152.

The previous prime is 57568463. The next prime is 57568501. The reversal of 57568481 is 18486575.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 54523456 + 3045025 = 7384^2 + 1745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57568481 is a prime.

It is a super-2 number, since 2×57568481² = 6628260009294722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57561481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2201 + ... + 10953.

It is an arithmetic number, because the mean of its divisors is an integer number (14395953).

Almost surely, 2^57568481 is an apocalyptic number.

It is an amenable number.

57568481 is a deficient number, since it is larger than the sum of its proper divisors (15331).

57568481 is an equidigital number, since it uses as much as digits as its factorization.

57568481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15330.

The product of its digits is 268800, while the sum is 44.

The square root of 57568481 is about 7587.3896038097. The cubic root of 57568481 is about 386.1252982582.

The spelling of 57568481 in words is "fifty-seven million, five hundred sixty-eight thousand, four hundred eighty-one".