26226505 has 4 divisors (see below), whose sum is σ = 31471812. Its totient is φ = 20981200.

The previous prime is 26226493. The next prime is 26226521. The reversal of 26226505 is 50562262.

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 14584761 + 11641744 = 3819^2 + 3412^2 .

It is not a de Polignac number, because 26226505 - 2¹⁹ = 25702217 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 2622646 + ... + 2622655.

It is an arithmetic number, because the mean of its divisors is an integer number (7867953).

Almost surely, 2^26226505 is an apocalyptic number.

It is an amenable number.

26226505 is a deficient number, since it is larger than the sum of its proper divisors (5245307).

26226505 is an equidigital number, since it uses as much as digits as its factorization.

26226505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245306.

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 26226505 is about 5121.1819924701. The cubic root of 26226505 is about 297.1074029510.

Adding to 26226505 its reverse (50562262), we get a palindrome (76788767).

The spelling of 26226505 in words is "twenty-six million, two hundred twenty-six thousand, five hundred five".