25565344 has 48 divisors (see below), whose sum is σ = 58496256. Its totient is φ = 10771200.

The previous prime is 25565341. The next prime is 25565347. The reversal of 25565344 is 44356552.

It is an interprime number because it is at equal distance from previous prime (25565341) and next prime (25565347).

It is not an unprimeable number, because it can be changed into a prime (25565341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12729 + ... + 14599.

It is an arithmetic number, because the mean of its divisors is an integer number (1218672).

Almost surely, 2^25565344 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 25565344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29248128).

25565344 is an abundant number, since it is smaller than the sum of its proper divisors (32930912).

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

25565344 is a wasteful number, since it uses less digits than its factorization.

25565344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1949 (or 1941 counting only the distinct ones).

The product of its digits is 72000, while the sum is 34.

The square root of 25565344 is about 5056.2183497155. The cubic root of 25565344 is about 294.5894662956.

The spelling of 25565344 in words is "twenty-five million, five hundred sixty-five thousand, three hundred forty-four".