99201625 has 32 divisors (see below), whose sum is σ = 129111840. Its totient is φ = 76032000.

The previous prime is 99201593. The next prime is 99201689. The reversal of 99201625 is 52610299.

It can be written as a sum of positive squares in 16 ways, for example, as 51494976 + 47706649 = 7176^2 + 6907^2 .

It is not a de Polignac number, because 99201625 - 2⁵ = 99201593 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 411505 + ... + 411745.

It is an arithmetic number, because the mean of its divisors is an integer number (4034745).

Almost surely, 2^99201625 is an apocalyptic number.

It is an amenable number.

99201625 is a deficient number, since it is larger than the sum of its proper divisors (29910215).

99201625 is a wasteful number, since it uses less digits than its factorization.

99201625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382 (or 372 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 34.

The square root of 99201625 is about 9960.0012550200. The cubic root of 99201625 is about 462.9203385844.

It can be divided in two parts, 992016 and 25, that multiplied together give a square (24800400 = 4980²).

The spelling of 99201625 in words is "ninety-nine million, two hundred one thousand, six hundred twenty-five".