25097916 has 36 divisors (see below), whose sum is σ = 62217848. Its totient is φ = 7872768.

The previous prime is 25097909. The next prime is 25097921. The reversal of 25097916 is 61979052.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 151 + ... + 7086.

Almost surely, 2^25097916 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25097916, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31108924).

25097916 is an abundant number, since it is smaller than the sum of its proper divisors (37119932).

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

25097916 is a wasteful number, since it uses less digits than its factorization.

25097916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7278 (or 7259 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 25097916 is about 5009.7820311866. The cubic root of 25097916 is about 292.7830206792.

The spelling of 25097916 in words is "twenty-five million, ninety-seven thousand, nine hundred sixteen".