557071 has 4 divisors (see below), whose sum is σ = 562912. Its totient is φ = 551232.

The previous prime is 557069. The next prime is 557087. The reversal of 557071 is 170755.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 557071 - 2¹ = 557069 is a prime.

It is a Duffinian number.

557071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (557021) 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, 2775 + ... + 2968.

It is an arithmetic number, because the mean of its divisors is an integer number (140728).

2⁵⁵⁷⁰⁷¹ is an apocalyptic number.

557071 is a deficient number, since it is larger than the sum of its proper divisors (5841).

557071 is an equidigital number, since it uses as much as digits as its factorization.

557071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5840.

The product of its (nonzero) digits is 1225, while the sum is 25.

The square root of 557071 is about 746.3718912178. The cubic root of 557071 is about 82.2817494289.

The spelling of 557071 in words is "five hundred fifty-seven thousand, seventy-one".