25789853 has 4 divisors (see below), whose sum is σ = 26276508. Its totient is φ = 25303200.

The previous prime is 25789847. The next prime is 25789873. The reversal of 25789853 is 35898752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19123129 + 6666724 = 4373^2 + 2582^2 .

It is a cyclic number.

It is not a de Polignac number, because 25789853 - 2⁶ = 25789789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 25789798 and 25789807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25789823) 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, 243248 + ... + 243353.

It is an arithmetic number, because the mean of its divisors is an integer number (6569127).

Almost surely, 2^25789853 is an apocalyptic number.

It is an amenable number.

25789853 is a deficient number, since it is larger than the sum of its proper divisors (486655).

25789853 is an equidigital number, since it uses as much as digits as its factorization.

25789853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 486654.

The product of its digits is 604800, while the sum is 47.

The square root of 25789853 is about 5078.3710971137. The cubic root of 25789853 is about 295.4492933418.

The spelling of 25789853 in words is "twenty-five million, seven hundred eighty-nine thousand, eight hundred fifty-three".