25442512 has 20 divisors (see below), whose sum is σ = 50995620. Its totient is φ = 12282368.

The previous prime is 25442497. The next prime is 25442563. The reversal of 25442512 is 21524452.

It can be written as a sum of positive squares in 2 ways, for example, as 13220496 + 12222016 = 3636^2 + 3496^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26953 + ... + 27880.

It is an arithmetic number, because the mean of its divisors is an integer number (2549781).

Almost surely, 2^25442512 is an apocalyptic number.

It is an amenable number.

25442512 is an abundant number, since it is smaller than the sum of its proper divisors (25553108).

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

25442512 is a wasteful number, since it uses less digits than its factorization.

25442512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54870 (or 54864 counting only the distinct ones).

The product of its digits is 3200, while the sum is 25.

The square root of 25442512 is about 5044.0570972185. The cubic root of 25442512 is about 294.1169109440.

Adding to 25442512 its reverse (21524452), we get a palindrome (46966964).

The spelling of 25442512 in words is "twenty-five million, four hundred forty-two thousand, five hundred twelve".