25318872 has 64 divisors (see below), whose sum is σ = 70761600. Its totient is φ = 8388000.

The previous prime is 25318871. The next prime is 25318877. The reversal of 25318872 is 27881352.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25318871) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 53983 + ... + 54449.

It is an arithmetic number, because the mean of its divisors is an integer number (1105650).

Almost surely, 2^25318872 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 25318872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35380800).

25318872 is an abundant number, since it is smaller than the sum of its proper divisors (45442728).

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

25318872 is a wasteful number, since it uses less digits than its factorization.

25318872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 733 (or 723 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 25318872 is about 5031.7861639780. The cubic root of 25318872 is about 293.6397085876.

The spelling of 25318872 in words is "twenty-five million, three hundred eighteen thousand, eight hundred seventy-two".