25887793 has 4 divisors (see below), whose sum is σ = 25933860. Its totient is φ = 25841728.

The previous prime is 25887791. The next prime is 25887833. The reversal of 25887793 is 39778852.

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 4293184 + 21594609 = 2072^2 + 4647^2 .

It is a cyclic number.

It is not a de Polignac number, because 25887793 - 2¹ = 25887791 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25887791) 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, 22180 + ... + 23317.

It is an arithmetic number, because the mean of its divisors is an integer number (6483465).

Almost surely, 2^25887793 is an apocalyptic number.

It is an amenable number.

25887793 is a deficient number, since it is larger than the sum of its proper divisors (46067).

25887793 is an equidigital number, since it uses as much as digits as its factorization.

25887793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46066.

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

The square root of 25887793 is about 5088.0048152493. The cubic root of 25887793 is about 295.8228220471.

Subtracting from 25887793 its sum of digits (49), we obtain a square (25887744 = 5088²).

The spelling of 25887793 in words is "twenty-five million, eight hundred eighty-seven thousand, seven hundred ninety-three".