555456 has 56 divisors (see below), whose sum is σ = 1609344. Its totient is φ = 167680.

The previous prime is 555439. The next prime is 555461. The reversal of 555456 is 654555.

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 555456.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981 + ... + 2243.

2⁵⁵⁵⁴⁵⁶ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (804672).

555456 is an abundant number, since it is smaller than the sum of its proper divisors (1053888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

555456 is a wasteful number, since it uses less digits than its factorization.

555456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 289 (or 279 counting only the distinct ones).

The product of its digits is 15000, while the sum is 30.

The square root of 555456 is about 745.2892056108. The cubic root of 555456 is about 82.2021583487.

Subtracting 555456 from its reverse (654555), we obtain a palindrome (99099).

The spelling of 555456 in words is "five hundred fifty-five thousand, four hundred fifty-six".