26266861 has 4 divisors (see below), whose sum is σ = 26320000. Its totient is φ = 26213724.

The previous prime is 26266813. The next prime is 26266871. The reversal of 26266861 is 16866262.

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 26266861 - 2¹³ = 26258669 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 26266861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26266811) 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, 25821 + ... + 26818.

It is an arithmetic number, because the mean of its divisors is an integer number (6580000).

Almost surely, 2^26266861 is an apocalyptic number.

It is an amenable number.

26266861 is a deficient number, since it is larger than the sum of its proper divisors (53139).

26266861 is an equidigital number, since it uses as much as digits as its factorization.

26266861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53138.

The product of its digits is 41472, while the sum is 37.

The square root of 26266861 is about 5125.1205839473. The cubic root of 26266861 is about 297.2597160621.

The spelling of 26266861 in words is "twenty-six million, two hundred sixty-six thousand, eight hundred sixty-one".