25494912 has 80 divisors (see below), whose sum is σ = 75903300. Its totient is φ = 8494848.

The previous prime is 25494901. The next prime is 25494913. The reversal of 25494912 is 21949452.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25494913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 9139 + ... + 11597.

Almost surely, 2^25494912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25494912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37951650).

25494912 is an abundant number, since it is smaller than the sum of its proper divisors (50408388).

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

25494912 is an equidigital number, since it uses as much as digits as its factorization.

25494912 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2485 (or 2464 counting only the distinct ones).

The product of its digits is 25920, while the sum is 36.

The square root of 25494912 is about 5049.2486569786. The cubic root of 25494912 is about 294.3186881617.

The spelling of 25494912 in words is "twenty-five million, four hundred ninety-four thousand, nine hundred twelve".