25282013 has 4 divisors (see below), whose sum is σ = 25313340. Its totient is φ = 25250688.

The previous prime is 25282003. The next prime is 25282021. The reversal of 25282013 is 31028252.

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 16999129 + 8282884 = 4123^2 + 2878^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25282013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25282013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25282003) 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, 14420 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (6328335).

Almost surely, 2^25282013 is an apocalyptic number.

It is an amenable number.

25282013 is a deficient number, since it is larger than the sum of its proper divisors (31327).

25282013 is an equidigital number, since it uses as much as digits as its factorization.

25282013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31326.

The product of its (nonzero) digits is 960, while the sum is 23.

The square root of 25282013 is about 5028.1222141074. The cubic root of 25282013 is about 293.4971466492.

The spelling of 25282013 in words is "twenty-five million, two hundred eighty-two thousand, thirteen".