26256220 has 24 divisors (see below), whose sum is σ = 55805904. Its totient is φ = 10375296.

The previous prime is 26256149. The next prime is 26256229. The reversal of 26256220 is 2265262.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26256229) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 6249 + ... + 9568.

It is an arithmetic number, because the mean of its divisors is an integer number (2325246).

Almost surely, 2^26256220 is an apocalyptic number.

26256220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26256220 is an abundant number, since it is smaller than the sum of its proper divisors (29549684).

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

26256220 is a wasteful number, since it uses less digits than its factorization.

26256220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15909 (or 15907 counting only the distinct ones).

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

The square root of 26256220 is about 5124.0823568713. The cubic root of 26256220 is about 297.2195695587.

The spelling of 26256220 in words is "twenty-six million, two hundred fifty-six thousand, two hundred twenty".