25225404 has 12 divisors (see below), whose sum is σ = 58859304. Its totient is φ = 8408464.

The previous prime is 25225397. The next prime is 25225441. The reversal of 25225404 is 40452252.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051047 + ... + 1051070.

It is an arithmetic number, because the mean of its divisors is an integer number (4904942).

Almost surely, 2^25225404 is an apocalyptic number.

It is an amenable number.

25225404 is an abundant number, since it is smaller than the sum of its proper divisors (33633900).

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

25225404 is a wasteful number, since it uses less digits than its factorization.

25225404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102124 (or 2102122 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 25225404 is about 5022.4898207961. The cubic root of 25225404 is about 293.2779262889.

Adding to 25225404 its reverse (40452252), we get a palindrome (65677656).

The spelling of 25225404 in words is "twenty-five million, two hundred twenty-five thousand, four hundred four".