26212081 has 16 divisors (see below), whose sum is σ = 31129600. Its totient is φ = 21597840.

The previous prime is 26212061. The next prime is 26212091. The reversal of 26212081 is 18021262.

It is a cyclic number.

It is not a de Polignac number, because 26212081 - 2⁵ = 26212049 is a prime.

It is a super-2 number, since 2×26212081² = 1374146380701122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26212061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42880 + ... + 43486.

It is an arithmetic number, because the mean of its divisors is an integer number (1945600).

Almost surely, 2^26212081 is an apocalyptic number.

It is an amenable number.

26212081 is a deficient number, since it is larger than the sum of its proper divisors (4917519).

26212081 is a wasteful number, since it uses less digits than its factorization.

26212081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 844.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 26212081 is about 5119.7735301476. The cubic root of 26212081 is about 297.0529254538.

The spelling of 26212081 in words is "twenty-six million, two hundred twelve thousand, eighty-one".