557642 has 8 divisors (see below), whose sum is σ = 844896. Its totient is φ = 276012.

The previous prime is 557639. The next prime is 557663. The reversal of 557642 is 246755.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1148 + ... + 1559.

It is an arithmetic number, because the mean of its divisors is an integer number (105612).

2⁵⁵⁷⁶⁴² is an apocalyptic number.

557642 is a deficient number, since it is larger than the sum of its proper divisors (287254).

557642 is a wasteful number, since it uses less digits than its factorization.

557642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2812.

The product of its digits is 8400, while the sum is 29.

The square root of 557642 is about 746.7543103324. The cubic root of 557642 is about 82.3098528696.

The spelling of 557642 in words is "five hundred fifty-seven thousand, six hundred forty-two".