25004243 has 12 divisors (see below), whose sum is σ = 28521528. Its totient is φ = 21737760.

The previous prime is 25004237. The next prime is 25004269. The reversal of 25004243 is 34240052.

It is not a de Polignac number, because 25004243 - 2⁸ = 25003987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25004233) 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, 3671 + ... + 7967.

It is an arithmetic number, because the mean of its divisors is an integer number (2376794).

Almost surely, 2^25004243 is an apocalyptic number.

25004243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25004243 is a deficient number, since it is larger than the sum of its proper divisors (3517285).

25004243 is a wasteful number, since it uses less digits than its factorization.

25004243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354 (or 4331 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 20.

The square root of 25004243 is about 5000.4242819985. The cubic root of 25004243 is about 292.4183150285.

Adding to 25004243 its reverse (34240052), we get a palindrome (59244295).

The spelling of 25004243 in words is "twenty-five million, four thousand, two hundred forty-three".