25389902 has 8 divisors (see below), whose sum is σ = 38179200. Its totient is φ = 12663504.

The previous prime is 25389887. The next prime is 25389919. The reversal of 25389902 is 20998352.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14702 + ... + 16337.

It is an arithmetic number, because the mean of its divisors is an integer number (4772400).

Almost surely, 2^25389902 is an apocalyptic number.

25389902 is a deficient number, since it is larger than the sum of its proper divisors (12789298).

25389902 is a wasteful number, since it uses less digits than its factorization.

25389902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31450.

The product of its (nonzero) digits is 38880, while the sum is 38.

The square root of 25389902 is about 5038.8393504854. The cubic root of 25389902 is about 293.9140461704.

The spelling of 25389902 in words is "twenty-five million, three hundred eighty-nine thousand, nine hundred two".