25245425 has 24 divisors (see below), whose sum is σ = 33426432. Its totient is φ = 18848000.

The previous prime is 25245383. The next prime is 25245427. The reversal of 25245425 is 52454252.

It is not a de Polignac number, because 25245425 - 2⁶ = 25245361 is a prime.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25245427) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 81020 + ... + 81330.

It is an arithmetic number, because the mean of its divisors is an integer number (1392768).

Almost surely, 2^25245425 is an apocalyptic number.

25245425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25245425 is a deficient number, since it is larger than the sum of its proper divisors (8181007).

25245425 is a wasteful number, since it uses less digits than its factorization.

25245425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 529 (or 524 counting only the distinct ones).

The product of its digits is 16000, while the sum is 29.

The square root of 25245425 is about 5024.4825604235. The cubic root of 25245425 is about 293.3554957716.

Adding to 25245425 its reverse (52454252), we get a palindrome (77699677).

The spelling of 25245425 in words is "twenty-five million, two hundred forty-five thousand, four hundred twenty-five".