99903925 has 24 divisors (see below), whose sum is σ = 135616320. Its totient is φ = 72403200.

The previous prime is 99903913. The next prime is 99903949. The reversal of 99903925 is 52930999.

It is a happy number.

It is not a de Polignac number, because 99903925 - 2²¹ = 97806773 is a prime.

It is a congruent number.

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, 118656 + ... + 119494.

It is an arithmetic number, because the mean of its divisors is an integer number (5650680).

Almost surely, 2^99903925 is an apocalyptic number.

It is an amenable number.

99903925 is a deficient number, since it is larger than the sum of its proper divisors (35712395).

99903925 is a wasteful number, since it uses less digits than its factorization.

99903925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1293 (or 1288 counting only the distinct ones).

The product of its (nonzero) digits is 196830, while the sum is 46.

The square root of 99903925 is about 9995.1950956447. The cubic root of 99903925 is about 464.0101888493.

The spelling of 99903925 in words is "ninety-nine million, nine hundred three thousand, nine hundred twenty-five".