25244425 has 12 divisors (see below), whose sum is σ = 31553536. Its totient is φ = 20034000.

The previous prime is 25244419. The next prime is 25244431. The reversal of 25244425 is 52444252.

It is an interprime number because it is at equal distance from previous prime (25244419) and next prime (25244431).

It is not a de Polignac number, because 25244425 - 2⁵ = 25244393 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 25244393 and 25244402.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801 + ... + 7150.

Almost surely, 2^25244425 is an apocalyptic number.

25244425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25244425 is a deficient number, since it is larger than the sum of its proper divisors (6309111).

25244425 is a wasteful number, since it uses less digits than its factorization.

25244425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8088 (or 8083 counting only the distinct ones).

The product of its digits is 12800, while the sum is 28.

The square root of 25244425 is about 5024.3830467033. The cubic root of 25244425 is about 293.3516223388.

Adding to 25244425 its reverse (52444252), we get a palindrome (77688677).

The spelling of 25244425 in words is "twenty-five million, two hundred forty-four thousand, four hundred twenty-five".