25282645 has 4 divisors (see below), whose sum is σ = 30339180. Its totient is φ = 20226112.

The previous prime is 25282633. The next prime is 25282669. The reversal of 25282645 is 54628252.

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 19722481 + 5560164 = 4441^2 + 2358^2 .

It is a cyclic number.

It is not a de Polignac number, because 25282645 - 2¹¹ = 25280597 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25282645.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2528260 + ... + 2528269.

It is an arithmetic number, because the mean of its divisors is an integer number (7584795).

Almost surely, 2^25282645 is an apocalyptic number.

It is an amenable number.

25282645 is a deficient number, since it is larger than the sum of its proper divisors (5056535).

25282645 is an equidigital number, since it uses as much as digits as its factorization.

25282645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5056534.

The product of its digits is 38400, while the sum is 34.

The square root of 25282645 is about 5028.1850602379. The cubic root of 25282645 is about 293.4995922437.

The spelling of 25282645 in words is "twenty-five million, two hundred eighty-two thousand, six hundred forty-five".