25494012 has 54 divisors (see below), whose sum is σ = 66148992. Its totient is φ = 8278704.

The previous prime is 25493989. The next prime is 25494019. The reversal of 25494012 is 21049452.

25494012 is a `hidden beast` number, since 254 + 9 + 401 + 2 = 666.

It is a super-2 number, since 2×25494012² = 1299889295712288, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25494019) 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 17 ways as a sum of consecutive naturals, for example, 66373 + ... + 66755.

Almost surely, 2^25494012 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 25494012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33074496).

25494012 is an abundant number, since it is smaller than the sum of its proper divisors (40654980).

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

25494012 is a wasteful number, since it uses less digits than its factorization.

25494012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 479 (or 431 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 25494012 is about 5049.1595340215. The cubic root of 25494012 is about 294.3152248571.

It can be divided in two parts, 2549 and 4012, that added together give a 8-th power (6561 = 3⁸).

The spelling of 25494012 in words is "twenty-five million, four hundred ninety-four thousand, twelve".