26220256 has 48 divisors (see below), whose sum is σ = 55184976. Its totient is φ = 12220416.

The previous prime is 26220251. The next prime is 26220287. The reversal of 26220256 is 65202262.

It is a self number, because there is not a number n which added to its sum of digits gives 26220256.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26220251) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85255 + ... + 85561.

It is an arithmetic number, because the mean of its divisors is an integer number (1149687).

Almost surely, 2^26220256 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26220256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27592488).

26220256 is an abundant number, since it is smaller than the sum of its proper divisors (28964720).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26220256 is a wasteful number, since it uses less digits than its factorization.

26220256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

The square root of 26220256 is about 5120.5718430660. The cubic root of 26220256 is about 297.0838037761.

The spelling of 26220256 in words is "twenty-six million, two hundred twenty thousand, two hundred fifty-six".