99625 has 8 divisors (see below), whose sum is σ = 124488. Its totient is φ = 79600.

The previous prime is 99623. The next prime is 99643. The reversal of 99625 is 52699.

It can be written as a sum of positive squares in 4 ways, for example, as 4761 + 94864 = 69^2 + 308^2 .

It is not a de Polignac number, because 99625 - 2¹ = 99623 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99623) 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 7 ways as a sum of consecutive naturals, for example, 274 + ... + 523.

It is an arithmetic number, because the mean of its divisors is an integer number (15561).

2⁹⁹⁶²⁵ is an apocalyptic number.

It is an amenable number.

99625 is a deficient number, since it is larger than the sum of its proper divisors (24863).

99625 is an equidigital number, since it uses as much as digits as its factorization.

99625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812 (or 802 counting only the distinct ones).

The product of its digits is 4860, while the sum is 31.

The square root of 99625 is about 315.6342820417. The cubic root of 99625 is about 46.3577957994.

The spelling of 99625 in words is "ninety-nine thousand, six hundred twenty-five".