25284133 has 4 divisors (see below), whose sum is σ = 28896160. Its totient is φ = 21672108.

The previous prime is 25284109. The next prime is 25284139. The reversal of 25284133 is 33148252.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25284133 - 2⁵ = 25284101 is a prime.

It is a Duffinian number.

It is a plaindrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25284139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1806003 + ... + 1806016.

It is an arithmetic number, because the mean of its divisors is an integer number (7224040).

Almost surely, 2^25284133 is an apocalyptic number.

It is an amenable number.

25284133 is a deficient number, since it is larger than the sum of its proper divisors (3612027).

25284133 is an equidigital number, since it uses as much as digits as its factorization.

25284133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3612026.

The product of its digits is 5760, while the sum is 28.

The square root of 25284133 is about 5028.3330239752. Note that the first 3 decimals coincide. The cubic root of 25284133 is about 293.5053500646.

The spelling of 25284133 in words is "twenty-five million, two hundred eighty-four thousand, one hundred thirty-three".