25250099 has 4 divisors (see below), whose sum is σ = 28857264. Its totient is φ = 21642936.

The previous prime is 25250087. The next prime is 25250123. The reversal of 25250099 is 99005252.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25250099 - 2⁸ = 25249843 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25250299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1803572 + ... + 1803585.

It is an arithmetic number, because the mean of its divisors is an integer number (7214316).

Almost surely, 2^25250099 is an apocalyptic number.

25250099 is a deficient number, since it is larger than the sum of its proper divisors (3607165).

25250099 is an equidigital number, since it uses as much as digits as its factorization.

25250099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3607164.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 25250099 is about 5024.9476614190. The cubic root of 25250099 is about 293.3735988401.

The spelling of 25250099 in words is "twenty-five million, two hundred fifty thousand, ninety-nine".