26272513 has 4 divisors (see below), whose sum is σ = 26913348. Its totient is φ = 25631680.

The previous prime is 26272501. The next prime is 26272549. The reversal of 26272513 is 31527262.

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 9199089 + 17073424 = 3033^2 + 4132^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26272513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26272913) 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, 320356 + ... + 320437.

It is an arithmetic number, because the mean of its divisors is an integer number (6728337).

Almost surely, 2^26272513 is an apocalyptic number.

It is an amenable number.

26272513 is a deficient number, since it is larger than the sum of its proper divisors (640835).

26272513 is an equidigital number, since it uses as much as digits as its factorization.

26272513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640834.

The product of its digits is 5040, while the sum is 28.

The square root of 26272513 is about 5125.6719559488. The cubic root of 26272513 is about 297.2810355925.

Adding to 26272513 its reverse (31527262), we get a palindrome (57799775).

The spelling of 26272513 in words is "twenty-six million, two hundred seventy-two thousand, five hundred thirteen".