25442132 has 12 divisors (see below), whose sum is σ = 47142900. Its totient is φ = 11972736.

The previous prime is 25442119. The next prime is 25442161. The reversal of 25442132 is 23124452.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19749136 + 5692996 = 4444^2 + 2386^2 .

It is a junction number, because it is equal to n+sod(n) for n = 25442098 and 25442107.

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, 187007 + ... + 187142.

It is an arithmetic number, because the mean of its divisors is an integer number (3928575).

Almost surely, 2^25442132 is an apocalyptic number.

It is an amenable number.

25442132 is a deficient number, since it is larger than the sum of its proper divisors (21700768).

25442132 is a wasteful number, since it uses less digits than its factorization.

25442132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374170 (or 374168 counting only the distinct ones).

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

The square root of 25442132 is about 5044.0194289872. The cubic root of 25442132 is about 294.1154466628.

Adding to 25442132 its reverse (23124452), we get a palindrome (48566584).

The spelling of 25442132 in words is "twenty-five million, four hundred forty-two thousand, one hundred thirty-two".