99964225 has 24 divisors (see below), whose sum is σ = 131192000. Its totient is φ = 75349440.

The previous prime is 99964211. The next prime is 99964259. The reversal of 99964225 is 52246999.

It is not a de Polignac number, because 99964225 - 2⁹ = 99963713 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 108316 + ... + 109234.

Almost surely, 2^99964225 is an apocalyptic number.

99964225 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

99964225 is a deficient number, since it is larger than the sum of its proper divisors (31227775).

99964225 is a wasteful number, since it uses less digits than its factorization.

99964225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1177 (or 1172 counting only the distinct ones).

The product of its digits is 349920, while the sum is 46.

The square root of 99964225 is about 9998.2110899900. The cubic root of 99964225 is about 464.1035258125.

It can be divided in two parts, 99 and 964225, that added together give a square (964324 = 982²).

The spelling of 99964225 in words is "ninety-nine million, nine hundred sixty-four thousand, two hundred twenty-five".