25028443 has 4 divisors (see below), whose sum is σ = 27303768. Its totient is φ = 22753120.

The previous prime is 25028441. The next prime is 25028447. The reversal of 25028443 is 34482052.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 25028443 - 2¹ = 25028441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25028441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1137646 + ... + 1137667.

It is an arithmetic number, because the mean of its divisors is an integer number (6825942).

Almost surely, 2^25028443 is an apocalyptic number.

25028443 is a deficient number, since it is larger than the sum of its proper divisors (2275325).

25028443 is a wasteful number, since it uses less digits than its factorization.

25028443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2275324.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 25028443 is about 5002.8434914556. The cubic root of 25028443 is about 292.5126222425.

The spelling of 25028443 in words is "twenty-five million, twenty-eight thousand, four hundred forty-three".