199992925 has 12 divisors (see below), whose sum is σ = 270536256. Its totient is φ = 145449200.

The previous prime is 199992911. The next prime is 199992959. The reversal of 199992925 is 529299991.

It is not a de Polignac number, because 199992925 - 2⁵ = 199992893 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (55).

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 363349 + ... + 363898.

It is an arithmetic number, because the mean of its divisors is an integer number (22544688).

Almost surely, 2^199992925 is an apocalyptic number.

It is an amenable number.

199992925 is a deficient number, since it is larger than the sum of its proper divisors (70543331).

199992925 is a wasteful number, since it uses less digits than its factorization.

199992925 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 727268 (or 727263 counting only the distinct ones).

The product of its digits is 1180980, while the sum is 55.

The square root of 199992925 is about 14141.8854824949. The cubic root of 199992925 is about 584.7966517528.

The spelling of 199992925 in words is "one hundred ninety-nine million, nine hundred ninety-two thousand, nine hundred twenty-five".