25491376 has 20 divisors (see below), whose sum is σ = 49469800. Its totient is φ = 12724992.

The previous prime is 25491371. The next prime is 25491397. The reversal of 25491376 is 67319452.

It is not an unprimeable number, because it can be changed into a prime (25491371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15355 + ... + 16933.

It is an arithmetic number, because the mean of its divisors is an integer number (2473490).

Almost surely, 2^25491376 is an apocalyptic number.

It is an amenable number.

25491376 is a deficient number, since it is larger than the sum of its proper divisors (23978424).

25491376 is a wasteful number, since it uses less digits than its factorization.

25491376 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2596 (or 2590 counting only the distinct ones).

The product of its digits is 45360, while the sum is 37.

The square root of 25491376 is about 5048.8984937311. The cubic root of 25491376 is about 294.3050807538.

It can be divided in two parts, 25 and 491376, that added together give a square (491401 = 701²).

The spelling of 25491376 in words is "twenty-five million, four hundred ninety-one thousand, three hundred seventy-six".