25828443 has 16 divisors (see below), whose sum is σ = 38388000. Its totient is φ = 17163360.

The previous prime is 25828421. The next prime is 25828459. The reversal of 25828443 is 34482852.

It is not a de Polignac number, because 25828443 - 2¹⁰ = 25827419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25828398 and 25828407.

It is not an unprimeable number, because it can be changed into a prime (25828463) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8053 + ... + 10793.

It is an arithmetic number, because the mean of its divisors is an integer number (2399250).

Almost surely, 2^25828443 is an apocalyptic number.

25828443 is a deficient number, since it is larger than the sum of its proper divisors (12559557).

25828443 is a wasteful number, since it uses less digits than its factorization.

25828443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3099 (or 3093 counting only the distinct ones).

The product of its digits is 61440, while the sum is 36.

The square root of 25828443 is about 5082.1691235141. The cubic root of 25828443 is about 295.5965826165.

It can be divided in two parts, 2582 and 8443, that added together give a square (11025 = 105²).

The spelling of 25828443 in words is "twenty-five million, eight hundred twenty-eight thousand, four hundred forty-three".