57565642 has 8 divisors (see below), whose sum is σ = 90102816. Its totient is φ = 27531372.

The previous prime is 57565633. The next prime is 57565643. The reversal of 57565642 is 24656575.

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

It is a junction number, because it is equal to n+sod(n) for n = 57565595 and 57565604.

It is not an unprimeable number, because it can be changed into a prime (57565643) 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, 625668 + ... + 625759.

It is an arithmetic number, because the mean of its divisors is an integer number (11262852).

Almost surely, 2^57565642 is an apocalyptic number.

57565642 is a deficient number, since it is larger than the sum of its proper divisors (32537174).

57565642 is a wasteful number, since it uses less digits than its factorization.

57565642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251452.

The product of its digits is 252000, while the sum is 40.

The square root of 57565642 is about 7587.2025147613. The cubic root of 57565642 is about 386.1189508743.

The spelling of 57565642 in words is "fifty-seven million, five hundred sixty-five thousand, six hundred forty-two".