555258 has 32 divisors (see below), whose sum is σ = 1244160. Its totient is φ = 163760.

The previous prime is 555257. The next prime is 555277. The reversal of 555258 is 852555.

It is a super-2 number, since 2×555258² = 616622893128, which contains 22 as substring.

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 555258.

It is not an unprimeable number, because it can be changed into a prime (555251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3013 + ... + 3191.

It is an arithmetic number, because the mean of its divisors is an integer number (38880).

2⁵⁵⁵²⁵⁸ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 555258, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (622080).

555258 is an abundant number, since it is smaller than the sum of its proper divisors (688902).

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

555258 is a wasteful number, since it uses less digits than its factorization.

555258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 10000, while the sum is 30.

The square root of 555258 is about 745.1563594307. The cubic root of 555258 is about 82.1923898212.

The spelling of 555258 in words is "five hundred fifty-five thousand, two hundred fifty-eight".