99223425 has 72 divisors (see below), whose sum is σ = 206129664. Its totient is φ = 44686080.

The previous prime is 99223391. The next prime is 99223451. The reversal of 99223425 is 52432299.

99223425 is a `hidden beast` number, since 9 + 9 + 223 + 425 = 666.

It is not a de Polignac number, because 99223425 - 2⁶ = 99223361 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 99223425.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 114544 + ... + 115406.

It is an arithmetic number, because the mean of its divisors is an integer number (2862912).

Almost surely, 2^99223425 is an apocalyptic number.

It is an amenable number.

99223425 is an abundant number, since it is smaller than the sum of its proper divisors (106906239).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

99223425 is a wasteful number, since it uses less digits than its factorization.

99223425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 959 (or 951 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 99223425 is about 9961.0955722752. The cubic root of 99223425 is about 462.9542457045.

The spelling of 99223425 in words is "ninety-nine million, two hundred twenty-three thousand, four hundred twenty-five".