25251612 has 24 divisors (see below), whose sum is σ = 60513936. Its totient is φ = 8189568.

The previous prime is 25251607. The next prime is 25251617. The reversal of 25251612 is 21615252.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (25251607) and next prime (25251617).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25251617) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 27993 + ... + 28880.

It is an arithmetic number, because the mean of its divisors is an integer number (2521414).

Almost surely, 2^25251612 is an apocalyptic number.

It is an amenable number.

25251612 is an abundant number, since it is smaller than the sum of its proper divisors (35262324).

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

25251612 is a wasteful number, since it uses less digits than its factorization.

25251612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56917 (or 56915 counting only the distinct ones).

The product of its digits is 1200, while the sum is 24.

The square root of 25251612 is about 5025.0982079955. The cubic root of 25251612 is about 293.3794584262.

Adding to 25251612 its reverse (21615252), we get a palindrome (46866864).

The spelling of 25251612 in words is "twenty-five million, two hundred fifty-one thousand, six hundred twelve".