25442122 has 8 divisors (see below), whose sum is σ = 38272356. Its totient is φ = 12684672.

The previous prime is 25442119. The next prime is 25442161. The reversal of 25442122 is 22124452.

It can be written as a sum of positive squares in 2 ways, for example, as 23512801 + 1929321 = 4849^2 + 1389^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 25442093 and 25442102.

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, 17313 + ... + 18724.

Almost surely, 2^25442122 is an apocalyptic number.

25442122 is a deficient number, since it is larger than the sum of its proper divisors (12830234).

25442122 is a wasteful number, since it uses less digits than its factorization.

25442122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36392.

The product of its digits is 1280, while the sum is 22.

The square root of 25442122 is about 5044.0184377141. The cubic root of 25442122 is about 294.1154081288.

Adding to 25442122 its reverse (22124452), we get a palindrome (47566574).

The spelling of 25442122 in words is "twenty-five million, four hundred forty-two thousand, one hundred twenty-two".