25425136 has 20 divisors (see below), whose sum is σ = 53739864. Its totient is φ = 11556800.

The previous prime is 25425133. The next prime is 25425137. The reversal of 25425136 is 63152452.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25425131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72055 + ... + 72406.

Almost surely, 2^25425136 is an apocalyptic number.

It is an amenable number.

25425136 is an abundant number, since it is smaller than the sum of its proper divisors (28314728).

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

25425136 is a wasteful number, since it uses less digits than its factorization.

25425136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144480 (or 144474 counting only the distinct ones).

The product of its digits is 7200, while the sum is 28.

The square root of 25425136 is about 5042.3343800268. The cubic root of 25425136 is about 294.0499398406.

Adding to 25425136 its reverse (63152452), we get a palindrome (88577588).

The spelling of 25425136 in words is "twenty-five million, four hundred twenty-five thousand, one hundred thirty-six".