555155 has 4 divisors (see below), whose sum is σ = 666192. Its totient is φ = 444120.

The previous prime is 555143. The next prime is 555167. The reversal of 555155 is 551555.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 551555 = 5 ⋅110311.

It is an interprime number because it is at equal distance from previous prime (555143) and next prime (555167).

It is not a de Polignac number, because 555155 - 2⁶ = 555091 is a prime.

It is a nude number because it is divisible by every one of its digits.

It is a Duffinian 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, 55511 + ... + 55520.

It is an arithmetic number, because the mean of its divisors is an integer number (166548).

2⁵⁵⁵¹⁵⁵ is an apocalyptic number.

555155 is a deficient number, since it is larger than the sum of its proper divisors (111037).

555155 is a wasteful number, since it uses less digits than its factorization.

555155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111036.

The product of its digits is 3125, while the sum is 26.

The square root of 555155 is about 745.0872432138. The cubic root of 555155 is about 82.1873072952.

Subtracting from 555155 its reverse (551555), we obtain a square (3600 = 60²).

The spelling of 555155 in words is "five hundred fifty-five thousand, one hundred fifty-five".