99725190 has 32 divisors (see below), whose sum is σ = 241544160. Its totient is φ = 26348544.

The previous prime is 99725173. The next prime is 99725201. The reversal of 99725190 is 9152799.

It is a super-2 number, since 2×99725190² = 19890227041072200, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11979 + ... + 18518.

It is an arithmetic number, because the mean of its divisors is an integer number (7548255).

Almost surely, 2^99725190 is an apocalyptic number.

99725190 is an abundant number, since it is smaller than the sum of its proper divisors (141818970).

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

99725190 is a wasteful number, since it uses less digits than its factorization.

99725190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30616.

The product of its (nonzero) digits is 51030, while the sum is 42.

The square root of 99725190 is about 9986.2500469395. The cubic root of 99725190 is about 463.7333082728.

The spelling of 99725190 in words is "ninety-nine million, seven hundred twenty-five thousand, one hundred ninety".