25225344 has 96 divisors (see below), whose sum is σ = 75369840. Its totient is φ = 8398080.

The previous prime is 25225337. The next prime is 25225363. The reversal of 25225344 is 44352252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (27).

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 11 ways as a sum of consecutive naturals, for example, 30699 + ... + 31509.

Almost surely, 2^25225344 is an apocalyptic number.

25225344 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25225344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37684920).

25225344 is an abundant number, since it is smaller than the sum of its proper divisors (50144496).

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

25225344 is an frugal number, since it uses more digits than its factorization.

25225344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 840 (or 816 counting only the distinct ones).

The product of its digits is 9600, while the sum is 27.

The square root of 25225344 is about 5022.4838476594. The cubic root of 25225344 is about 293.2776937628.

Adding to 25225344 its reverse (44352252), we get a palindrome (69577596).

The spelling of 25225344 in words is "twenty-five million, two hundred twenty-five thousand, three hundred forty-four".