25020099 has 12 divisors (see below), whose sum is σ = 38920336. Its totient is φ = 15396912.

The previous prime is 25020097. The next prime is 25020133. The reversal of 25020099 is 99002052.

It is not a de Polignac number, because 25020099 - 2¹ = 25020097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25020097) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106807 + ... + 107040.

Almost surely, 2^25020099 is an apocalyptic number.

25020099 is a deficient number, since it is larger than the sum of its proper divisors (13900237).

25020099 is a wasteful number, since it uses less digits than its factorization.

25020099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213866 (or 213863 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 27.

The square root of 25020099 is about 5002.0094961925. The cubic root of 25020099 is about 292.4801126080.

The spelling of 25020099 in words is "twenty-five million, twenty thousand, ninety-nine".