26255780 has 12 divisors (see below), whose sum is σ = 55137180. Its totient is φ = 10502304.

The previous prime is 26255771. The next prime is 26255783. The reversal of 26255780 is 8755262.

It can be written as a sum of positive squares in 2 ways, for example, as 20214016 + 6041764 = 4496^2 + 2458^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26255780.

It is not an unprimeable number, because it can be changed into a prime (26255783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 656375 + ... + 656414.

It is an arithmetic number, because the mean of its divisors is an integer number (4594765).

Almost surely, 2^26255780 is an apocalyptic number.

26255780 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

26255780 is an abundant number, since it is smaller than the sum of its proper divisors (28881400).

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

26255780 is a wasteful number, since it uses less digits than its factorization.

26255780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312798 (or 1312796 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 35.

The square root of 26255780 is about 5124.0394221747. The cubic root of 26255780 is about 297.2179092874.

The spelling of 26255780 in words is "twenty-six million, two hundred fifty-five thousand, seven hundred eighty".