99055 has 8 divisors (see below), whose sum is σ = 129744. Its totient is φ = 72000.

The previous prime is 99053. The next prime is 99079. The reversal of 99055 is 55099.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 99055 - 2¹ = 99053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846 + ... + 955.

It is an arithmetic number, because the mean of its divisors is an integer number (16218).

2⁹⁹⁰⁵⁵ is an apocalyptic number.

99055 is a deficient number, since it is larger than the sum of its proper divisors (30689).

99055 is a wasteful number, since it uses less digits than its factorization.

99055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1817.

The product of its (nonzero) digits is 2025, while the sum is 28.

The square root of 99055 is about 314.7300430528. The cubic root of 99055 is about 46.2692152929.

Subtracting from 99055 its reverse (55099), we obtain a triangular number (43956 = T₂₉₆).

The spelling of 99055 in words is "ninety-nine thousand, fifty-five".