26616253 has 4 divisors (see below), whose sum is σ = 26627680. Its totient is φ = 26604828.

The previous prime is 26616217. The next prime is 26616263. The reversal of 26616253 is 35261662.

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, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 35261662 = 2 ⋅17630831.

It is a cyclic number.

It is not a de Polignac number, because 26616253 - 2⁹ = 26615741 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 (26616263) 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, 825 + ... + 7342.

It is an arithmetic number, because the mean of its divisors is an integer number (6656920).

Almost surely, 2^26616253 is an apocalyptic number.

It is an amenable number.

26616253 is a deficient number, since it is larger than the sum of its proper divisors (11427).

26616253 is an equidigital number, since it uses as much as digits as its factorization.

26616253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11426.

The product of its digits is 12960, while the sum is 31.

The square root of 26616253 is about 5159.0942034431. The cubic root of 26616253 is about 298.5719276325.

The spelling of 26616253 in words is "twenty-six million, six hundred sixteen thousand, two hundred fifty-three".