25439316 has 48 divisors (see below), whose sum is σ = 69425664. Its totient is φ = 7098336.

The previous prime is 25439303. The next prime is 25439321. The reversal of 25439316 is 61393452.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91 + ... + 7133.

It is an arithmetic number, because the mean of its divisors is an integer number (1446368).

Almost surely, 2^25439316 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 25439316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34712832).

25439316 is an abundant number, since it is smaller than the sum of its proper divisors (43986348).

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

25439316 is a wasteful number, since it uses less digits than its factorization.

25439316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7100 (or 7098 counting only the distinct ones).

The product of its digits is 19440, while the sum is 33.

The square root of 25439316 is about 5043.7402788010. The cubic root of 25439316 is about 294.1045951134.

The spelling of 25439316 in words is "twenty-five million, four hundred thirty-nine thousand, three hundred sixteen".