99757125 has 96 divisors (see below), whose sum is σ = 204422400. Its totient is φ = 46396800.

The previous prime is 99757123. The next prime is 99757153. The reversal of 99757125 is 52175799.

It is not a de Polignac number, because 99757125 - 2¹ = 99757123 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99757121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 277696 + ... + 278054.

It is an arithmetic number, because the mean of its divisors is an integer number (2129400).

Almost surely, 2^99757125 is an apocalyptic number.

99757125 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

99757125 is an abundant number, since it is smaller than the sum of its proper divisors (104665275).

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

99757125 is a wasteful number, since it uses less digits than its factorization.

99757125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 412 (or 399 counting only the distinct ones).

The product of its digits is 198450, while the sum is 45.

The square root of 99757125 is about 9987.8488674989. The cubic root of 99757125 is about 463.7828034327.

The spelling of 99757125 in words is "ninety-nine million, seven hundred fifty-seven thousand, one hundred twenty-five".