26320500 has 72 divisors (see below), whose sum is σ = 83046600. Its totient is φ = 7017600.

The previous prime is 26320451. The next prime is 26320501. The reversal of 26320500 is 502362.

It can be written as a sum of positive squares in 4 ways, for example, as 2232036 + 24088464 = 1494^2 + 4908^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26320501) 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 23 ways as a sum of consecutive naturals, for example, 1576 + ... + 7424.

It is an arithmetic number, because the mean of its divisors is an integer number (1153425).

Almost surely, 2^26320500 is an apocalyptic number.

26320500 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 26320500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41523300).

26320500 is an abundant number, since it is smaller than the sum of its proper divisors (56726100).

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

26320500 is a wasteful number, since it uses less digits than its factorization.

26320500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5874 (or 5859 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 26320500 is about 5130.3508651943. The cubic root of 26320500 is about 297.4619210731.

Adding to 26320500 its reverse (502362), we get a palindrome (26822862).

The spelling of 26320500 in words is "twenty-six million, three hundred twenty thousand, five hundred".