25861273 has 4 divisors (see below), whose sum is σ = 25953588. Its totient is φ = 25768960.

The previous prime is 25861271. The next prime is 25861279. The reversal of 25861273 is 37216852.

It is a happy number.

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 5817744 + 20043529 = 2412^2 + 4477^2 .

It is a cyclic number.

It is not a de Polignac number, because 25861273 - 2¹ = 25861271 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25861271) 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, 45736 + ... + 46297.

It is an arithmetic number, because the mean of its divisors is an integer number (6488397).

Almost surely, 2^25861273 is an apocalyptic number.

It is an amenable number.

25861273 is a deficient number, since it is larger than the sum of its proper divisors (92315).

25861273 is an equidigital number, since it uses as much as digits as its factorization.

25861273 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92314.

The product of its digits is 20160, while the sum is 34.

The square root of 25861273 is about 5085.3980178546. The cubic root of 25861273 is about 295.7217718249.

The spelling of 25861273 in words is "twenty-five million, eight hundred sixty-one thousand, two hundred seventy-three".