25284263 has 4 divisors (see below), whose sum is σ = 25300200. Its totient is φ = 25268328.

The previous prime is 25284247. The next prime is 25284271. The reversal of 25284263 is 36248252.

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

It is a cyclic number.

It is not a de Polignac number, because 25284263 - 2⁴ = 25284247 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 (25284463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5288 + ... + 8861.

It is an arithmetic number, because the mean of its divisors is an integer number (6325050).

Almost surely, 2^25284263 is an apocalyptic number.

25284263 is a deficient number, since it is larger than the sum of its proper divisors (15937).

25284263 is a wasteful number, since it uses less digits than its factorization.

25284263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15936.

The product of its digits is 23040, while the sum is 32.

The square root of 25284263 is about 5028.3459507078. The cubic root of 25284263 is about 293.5058530893.

The spelling of 25284263 in words is "twenty-five million, two hundred eighty-four thousand, two hundred sixty-three".