26553320 has 48 divisors (see below), whose sum is σ = 63493740. Its totient is φ = 9992192.

The previous prime is 26553313. The next prime is 26553341. The reversal of 26553320 is 2335562.

It can be written as a sum of positive squares in 6 ways, for example, as 18679684 + 7873636 = 4322^2 + 2806^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 26553320.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 10412 + ... + 12708.

Almost surely, 2^26553320 is an apocalyptic number.

26553320 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 26553320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31746870).

26553320 is an abundant number, since it is smaller than the sum of its proper divisors (36940420).

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

26553320 is a wasteful number, since it uses less digits than its factorization.

26553320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2342 (or 2321 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 26.

The square root of 26553320 is about 5152.9913642466. The cubic root of 26553320 is about 298.3364217055.

Adding to 26553320 its reverse (2335562), we get a palindrome (28888882).

The spelling of 26553320 in words is "twenty-six million, five hundred fifty-three thousand, three hundred twenty".