25226012 has 12 divisors (see below), whose sum is σ = 50452080. Its totient is φ = 10811136.

The previous prime is 25225997. The next prime is 25226017. The reversal of 25226012 is 21062252.

25226012 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25226017) 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 3 ways as a sum of consecutive naturals, for example, 450437 + ... + 450492.

It is an arithmetic number, because the mean of its divisors is an integer number (4204340).

Almost surely, 2^25226012 is an apocalyptic number.

It is an amenable number.

25226012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

25226012 is a wasteful number, since it uses less digits than its factorization.

25226012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900940 (or 900938 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 25226012 is about 5022.5503481797. The cubic root of 25226012 is about 293.2802825319.

Adding to 25226012 its reverse (21062252), we get a palindrome (46288264).

The spelling of 25226012 in words is "twenty-five million, two hundred twenty-six thousand, twelve".