25873789 has 4 divisors (see below), whose sum is σ = 25885756. Its totient is φ = 25861824.

The previous prime is 25873759. The next prime is 25873879. The reversal of 25873789 is 98737852.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 10208025 = 3958^2 + 3195^2 .

It is a cyclic number.

It is not a de Polignac number, because 25873789 - 2¹³ = 25865597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25873759) 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, 1734 + ... + 7399.

It is an arithmetic number, because the mean of its divisors is an integer number (6471439).

Almost surely, 2^25873789 is an apocalyptic number.

It is an amenable number.

25873789 is a deficient number, since it is larger than the sum of its proper divisors (11967).

25873789 is an equidigital number, since it uses as much as digits as its factorization.

25873789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11966.

The product of its digits is 846720, while the sum is 49.

The square root of 25873789 is about 5086.6284511452. The cubic root of 25873789 is about 295.7694706468.

It can be divided in two parts, 25873 and 789, that added together give a palindrome (26662).

The spelling of 25873789 in words is "twenty-five million, eight hundred seventy-three thousand, seven hundred eighty-nine".