25043425 has 24 divisors (see below), whose sum is σ = 35667360. Its totient is φ = 17251200.

The previous prime is 25043419. The next prime is 25043437. The reversal of 25043425 is 52434052.

It is not a de Polignac number, because 25043425 - 2¹¹ = 25041377 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 25043425.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2829 + ... + 7621.

It is an arithmetic number, because the mean of its divisors is an integer number (1486140).

Almost surely, 2^25043425 is an apocalyptic number.

25043425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

25043425 is a deficient number, since it is larger than the sum of its proper divisors (10623935).

25043425 is a wasteful number, since it uses less digits than its factorization.

25043425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4833 (or 4828 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 25.

The square root of 25043425 is about 5004.3406159054. The cubic root of 25043425 is about 292.5709765178.

Adding to 25043425 its reverse (52434052), we get a palindrome (77477477).

It can be divided in two parts, 2504 and 3425, that added together give a square (5929 = 77²).

The spelling of 25043425 in words is "twenty-five million, forty-three thousand, four hundred twenty-five".