557445 has 16 divisors (see below), whose sum is σ = 1019520. Its totient is φ = 254784.

The previous prime is 557443. The next prime is 557449. The reversal of 557445 is 544755.

It is not a de Polignac number, because 557445 - 2¹ = 557443 is a prime.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 557445.

It is not an unprimeable number, because it can be changed into a prime (557443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2550 + ... + 2759.

It is an arithmetic number, because the mean of its divisors is an integer number (63720).

2⁵⁵⁷⁴⁴⁵ is an apocalyptic number.

It is an amenable number.

557445 is a deficient number, since it is larger than the sum of its proper divisors (462075).

557445 is a wasteful number, since it uses less digits than its factorization.

557445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5324.

The product of its digits is 14000, while the sum is 30.

The square root of 557445 is about 746.6223945208. The cubic root of 557445 is about 82.3001591050.

The spelling of 557445 in words is "five hundred fifty-seven thousand, four hundred forty-five".