555345 has 48 divisors (see below), whose sum is σ = 1153152. Its totient is φ = 241920.

The previous prime is 555337. The next prime is 555349. The reversal of 555345 is 543555.

It is not a de Polignac number, because 555345 - 2³ = 555337 is a prime.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

555345 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (555349) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 12894 + ... + 12936.

It is an arithmetic number, because the mean of its divisors is an integer number (24024).

2⁵⁵⁵³⁴⁵ is an apocalyptic number.

It is an amenable number.

555345 is an abundant number, since it is smaller than the sum of its proper divisors (597807).

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

555345 is a wasteful number, since it uses less digits than its factorization.

555345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102 (or 99 counting only the distinct ones).

The product of its digits is 7500, while the sum is 27.

The square root of 555345 is about 745.2147341539. The cubic root of 555345 is about 82.1966823390.

It can be divided in two parts, 555 and 345, that added together give a square (900 = 30²).

The spelling of 555345 in words is "five hundred fifty-five thousand, three hundred forty-five".