25494425 has 12 divisors (see below), whose sum is σ = 34487376. Its totient is φ = 18541200.

The previous prime is 25494421. The next prime is 25494439. The reversal of 25494425 is 52449452.

It is not a de Polignac number, because 25494425 - 2² = 25494421 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25494421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46079 + ... + 46628.

It is an arithmetic number, because the mean of its divisors is an integer number (2873948).

Almost surely, 2^25494425 is an apocalyptic number.

25494425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25494425 is a deficient number, since it is larger than the sum of its proper divisors (8992951).

25494425 is a wasteful number, since it uses less digits than its factorization.

25494425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92728 (or 92723 counting only the distinct ones).

The product of its digits is 57600, while the sum is 35.

The square root of 25494425 is about 5049.2004317515. The cubic root of 25494425 is about 294.3168141392.

The spelling of 25494425 in words is "twenty-five million, four hundred ninety-four thousand, four hundred twenty-five".