25445812 has 24 divisors (see below), whose sum is σ = 51468480. Its totient is φ = 10781760.

The previous prime is 25445803. The next prime is 25445813. The reversal of 25445812 is 21854452.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25445813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2614 + ... + 7597.

It is an arithmetic number, because the mean of its divisors is an integer number (2144520).

Almost surely, 2^25445812 is an apocalyptic number.

It is an amenable number.

25445812 is an abundant number, since it is smaller than the sum of its proper divisors (26022668).

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

25445812 is a wasteful number, since it uses less digits than its factorization.

25445812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10311 (or 10309 counting only the distinct ones).

The product of its digits is 12800, while the sum is 31.

The square root of 25445812 is about 5044.3842042414. The cubic root of 25445812 is about 294.1296264580.

The spelling of 25445812 in words is "twenty-five million, four hundred forty-five thousand, eight hundred twelve".