99255 has 16 divisors (see below), whose sum is σ = 171360. Its totient is φ = 48768.

The previous prime is 99251. The next prime is 99257. The reversal of 99255 is 55299.

It is not a de Polignac number, because 99255 - 2² = 99251 is a prime.

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 99255.

It is not an unprimeable number, because it can be changed into a prime (99251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60 + ... + 449.

It is an arithmetic number, because the mean of its divisors is an integer number (10710).

2⁹⁹²⁵⁵ is an apocalyptic number.

99255 is a deficient number, since it is larger than the sum of its proper divisors (72105).

99255 is a wasteful number, since it uses less digits than its factorization.

99255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530.

The product of its digits is 4050, while the sum is 30.

The square root of 99255 is about 315.0476154488. The cubic root of 99255 is about 46.3003347786.

Subtracting from 99255 its sum of digits (30), we obtain a square (99225 = 315²).

Subtracting from 99255 its reverse (55299), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 99255 in words is "ninety-nine thousand, two hundred fifty-five".