25401344 has 48 divisors (see below), whose sum is σ = 51760800. Its totient is φ = 12460032.

The previous prime is 25401323. The next prime is 25401379. The reversal of 25401344 is 44310452.

It is a zygodrome in base 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 161714 + ... + 161870.

It is an arithmetic number, because the mean of its divisors is an integer number (1078350).

Almost surely, 2^25401344 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 25401344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25880400).

25401344 is an abundant number, since it is smaller than the sum of its proper divisors (26359456).

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

25401344 is an equidigital number, since it uses as much as digits as its factorization.

25401344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258 (or 238 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 25401344 is about 5039.9746031106. The cubic root of 25401344 is about 293.9581904851.

Adding to 25401344 its reverse (44310452), we get a palindrome (69711796).

The spelling of 25401344 in words is "twenty-five million, four hundred one thousand, three hundred forty-four".