557455 has 4 divisors (see below), whose sum is σ = 668952. Its totient is φ = 445960.

The previous prime is 557449. The next prime is 557461. The reversal of 557455 is 554755.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 554755 = 5 ⋅110951.

It is an interprime number because it is at equal distance from previous prime (557449) and next prime (557461).

It is not a de Polignac number, because 557455 - 2⁵ = 557423 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 55741 + ... + 55750.

It is an arithmetic number, because the mean of its divisors is an integer number (167238).

2⁵⁵⁷⁴⁵⁵ is an apocalyptic number.

557455 is a deficient number, since it is larger than the sum of its proper divisors (111497).

557455 is a wasteful number, since it uses less digits than its factorization.

557455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111496.

The product of its digits is 17500, while the sum is 31.

The square root of 557455 is about 746.6290913164. The cubic root of 557455 is about 82.3006512293.

The spelling of 557455 in words is "five hundred fifty-seven thousand, four hundred fifty-five".