99975625 has 20 divisors (see below), whose sum is σ = 131520400. Its totient is φ = 75762000.

The previous prime is 99975619. The next prime is 99975637. The reversal of 99975625 is 52657999.

It is not a de Polignac number, because 99975625 - 2⁷ = 99975497 is a prime.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7666 + ... + 16084.

It is an arithmetic number, because the mean of its divisors is an integer number (6576020).

Almost surely, 2^99975625 is an apocalyptic number.

99975625 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

99975625 is a deficient number, since it is larger than the sum of its proper divisors (31544775).

99975625 is an equidigital number, since it uses as much as digits as its factorization.

99975625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8458 (or 8443 counting only the distinct ones).

The product of its digits is 1530900, while the sum is 52.

The square root of 99975625 is about 9998.7811757234. The cubic root of 99975625 is about 464.1211673874.

The spelling of 99975625 in words is "ninety-nine million, nine hundred seventy-five thousand, six hundred twenty-five".