25898964 has 96 divisors (see below), whose sum is σ = 76505856. Its totient is φ = 6635520.

The previous prime is 25898959. The next prime is 25898969. The reversal of 25898964 is 46989852.

It is an interprime number because it is at equal distance from previous prime (25898959) and next prime (25898969).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25898969) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40084 + ... + 40724.

It is an arithmetic number, because the mean of its divisors is an integer number (796936).

Almost surely, 2^25898964 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 25898964, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38252928).

25898964 is an abundant number, since it is smaller than the sum of its proper divisors (50606892).

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

25898964 is a wasteful number, since it uses less digits than its factorization.

25898964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 705 (or 703 counting only the distinct ones).

The product of its digits is 1244160, while the sum is 51.

The square root of 25898964 is about 5089.1024748967. The cubic root of 25898964 is about 295.8653667003.

It can be divided in two parts, 25898 and 964, that added together give a palindrome (26862).

The spelling of 25898964 in words is "twenty-five million, eight hundred ninety-eight thousand, nine hundred sixty-four".