25020243 has 24 divisors (see below), whose sum is σ = 39592800. Its totient is φ = 15154944.

The previous prime is 25020227. The next prime is 25020257. The reversal of 25020243 is 34202052.

It is not a de Polignac number, because 25020243 - 2⁴ = 25020227 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25020223) 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, 1618 + ... + 7256.

It is an arithmetic number, because the mean of its divisors is an integer number (1649700).

Almost surely, 2^25020243 is an apocalyptic number.

25020243 is a deficient number, since it is larger than the sum of its proper divisors (14572557).

25020243 is a wasteful number, since it uses less digits than its factorization.

25020243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5691 (or 5688 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 25020243 is about 5002.0238903868. The cubic root of 25020243 is about 292.4806737176.

Adding to 25020243 its reverse (34202052), we get a palindrome (59222295).

The spelling of 25020243 in words is "twenty-five million, twenty thousand, two hundred forty-three".