25297902 has 96 divisors (see below), whose sum is σ = 66044160. Its totient is φ = 6848640.

The previous prime is 25297879. The next prime is 25297957. The reversal of 25297902 is 20979252.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 304753 + ... + 304835.

It is an arithmetic number, because the mean of its divisors is an integer number (687960).

Almost surely, 2^25297902 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25297902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33022080).

25297902 is an abundant number, since it is smaller than the sum of its proper divisors (40746258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25297902 is a wasteful number, since it uses less digits than its factorization.

25297902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 198 (or 195 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 25297902 is about 5029.7019792429. The cubic root of 25297902 is about 293.5586185419.

The spelling of 25297902 in words is "twenty-five million, two hundred ninety-seven thousand, nine hundred two".