25916898 has 64 divisors (see below), whose sum is σ = 61378560. Its totient is φ = 7143552.

The previous prime is 25916843. The next prime is 25916939. The reversal of 25916898 is 89861952.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 242161 + ... + 242267.

It is an arithmetic number, because the mean of its divisors is an integer number (959040).

Almost surely, 2^25916898 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25916898, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30689280).

25916898 is an abundant number, since it is smaller than the sum of its proper divisors (35461662).

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

25916898 is a wasteful number, since it uses less digits than its factorization.

25916898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271.

The product of its digits is 311040, while the sum is 48.

The square root of 25916898 is about 5090.8641702564. The cubic root of 25916898 is about 295.9336426001.

The spelling of 25916898 in words is "twenty-five million, nine hundred sixteen thousand, eight hundred ninety-eight".