99025 has 12 divisors (see below), whose sum is σ = 130572. Its totient is φ = 74240.

The previous prime is 99023. The next prime is 99041. The reversal of 99025 is 52099.

It can be written as a sum of positive squares in 6 ways, for example, as 2304 + 96721 = 48^2 + 311^2 .

It is not a de Polignac number, because 99025 - 2¹ = 99023 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (99023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 309 + ... + 541.

It is an arithmetic number, because the mean of its divisors is an integer number (10881).

2⁹⁹⁰²⁵ is an apocalyptic number.

It is an amenable number.

99025 is a deficient number, since it is larger than the sum of its proper divisors (31547).

99025 is a wasteful number, since it uses less digits than its factorization.

99025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260 (or 255 counting only the distinct ones).

The product of its (nonzero) digits is 810, while the sum is 25.

The square root of 99025 is about 314.6823795512. The cubic root of 99025 is about 46.2645437582.

It can be divided in two parts, 9 and 9025, that multiplied together give a square (81225 = 285²).

The spelling of 99025 in words is "ninety-nine thousand, twenty-five".