999133025 has 24 divisors (see below), whose sum is σ = 1360561728. Its totient is φ = 721800000.

The previous prime is 999133019. The next prime is 999133067. The reversal of 999133025 is 520331999.

It is a happy number.

It is not a de Polignac number, because 999133025 - 2⁶ = 999132961 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29495 + ... + 53555.

It is an arithmetic number, because the mean of its divisors is an integer number (56690072).

Almost surely, 2^999133025 is an apocalyptic number.

It is an amenable number.

999133025 is a deficient number, since it is larger than the sum of its proper divisors (361428703).

999133025 is a wasteful number, since it uses less digits than its factorization.

999133025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233 (or 24228 counting only the distinct ones).

The product of its (nonzero) digits is 65610, while the sum is 41.

The square root of 999133025 is about 31609.0655508827. The cubic root of 999133025 is about 999.7109247769.

The spelling of 999133025 in words is "nine hundred ninety-nine million, one hundred thirty-three thousand, twenty-five".