26020221 has 16 divisors (see below), whose sum is σ = 36485760. Its totient is φ = 16470720.

The previous prime is 26020219. The next prime is 26020229. The reversal of 26020221 is 12202062.

It is not a de Polignac number, because 26020221 - 2¹ = 26020219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 26020221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26020229) 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 15 ways as a sum of consecutive naturals, for example, 2856 + ... + 7758.

It is an arithmetic number, because the mean of its divisors is an integer number (2280360).

Almost surely, 2^26020221 is an apocalyptic number.

It is an amenable number.

26020221 is a deficient number, since it is larger than the sum of its proper divisors (10465539).

26020221 is a wasteful number, since it uses less digits than its factorization.

26020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4996.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 26020221 is about 5101.0019603995. The cubic root of 26020221 is about 296.3263877508.

Adding to 26020221 its reverse (12202062), we get a palindrome (38222283).

The spelling of 26020221 in words is "twenty-six million, twenty thousand, two hundred twenty-one".