25817372 has 48 divisors (see below), whose sum is σ = 54227712. Its totient is φ = 10523520.

The previous prime is 25817369. The next prime is 25817377. The reversal of 25817372 is 27371852.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25817377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49103 + ... + 49625.

It is an arithmetic number, because the mean of its divisors is an integer number (1129744).

Almost surely, 2^25817372 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 25817372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27113856).

25817372 is an abundant number, since it is smaller than the sum of its proper divisors (28410340).

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

25817372 is a wasteful number, since it uses less digits than its factorization.

25817372 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618 (or 616 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The square root of 25817372 is about 5081.0798064978. The cubic root of 25817372 is about 295.5543421369.

The spelling of 25817372 in words is "twenty-five million, eight hundred seventeen thousand, three hundred seventy-two".