99725492 has 24 divisors (see below), whose sum is σ = 177394560. Its totient is φ = 49046400.

The previous prime is 99725491. The next prime is 99725497. The reversal of 99725492 is 29452799.

It is a Smith number, since the sum of its digits (47) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99725491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 126323 + ... + 127109.

It is an arithmetic number, because the mean of its divisors is an integer number (7391440).

Almost surely, 2^99725492 is an apocalyptic number.

It is an amenable number.

99725492 is a deficient number, since it is larger than the sum of its proper divisors (77669068).

99725492 is a wasteful number, since it uses less digits than its factorization.

99725492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271 (or 1269 counting only the distinct ones).

The product of its digits is 408240, while the sum is 47.

The square root of 99725492 is about 9986.2651677191. The cubic root of 99725492 is about 463.7337763836.

The spelling of 99725492 in words is "ninety-nine million, seven hundred twenty-five thousand, four hundred ninety-two".