557065 has 8 divisors (see below), whose sum is σ = 684288. Its totient is φ = 435120.

The previous prime is 557059. The next prime is 557069. The reversal of 557065 is 560755.

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

It is not a de Polignac number, because 557065 - 2³ = 557057 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (557069) 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, 1081 + ... + 1510.

It is an arithmetic number, because the mean of its divisors is an integer number (85536).

2⁵⁵⁷⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

557065 is a deficient number, since it is larger than the sum of its proper divisors (127223).

557065 is a wasteful number, since it uses less digits than its factorization.

557065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2639.

The product of its (nonzero) digits is 5250, while the sum is 28.

The square root of 557065 is about 746.3678717630. The cubic root of 557065 is about 82.2814540194.

The spelling of 557065 in words is "five hundred fifty-seven thousand, sixty-five".