26256500 has 48 divisors (see below), whose sum is σ = 60737040. Its totient is φ = 9881600.

The previous prime is 26256497. The next prime is 26256509. The reversal of 26256500 is 565262.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 1136356 + 25120144 = 1066^2 + 5012^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26256500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26256509) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6956 + ... + 10044.

It is an arithmetic number, because the mean of its divisors is an integer number (1265355).

Almost surely, 2^26256500 is an apocalyptic number.

26256500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 26256500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30368520).

26256500 is an abundant number, since it is smaller than the sum of its proper divisors (34480540).

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

26256500 is a wasteful number, since it uses less digits than its factorization.

26256500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3125 (or 3113 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 26256500 is about 5124.1096787637. The cubic root of 26256500 is about 297.2206260852.

The spelling of 26256500 in words is "twenty-six million, two hundred fifty-six thousand, five hundred".