26550320 has 40 divisors (see below), whose sum is σ = 62525760. Its totient is φ = 10483200.

The previous prime is 26550301. The next prime is 26550331. The reversal of 26550320 is 2305562.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4220 + ... + 8420.

It is an arithmetic number, because the mean of its divisors is an integer number (1563144).

Almost surely, 2^26550320 is an apocalyptic number.

26550320 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 26550320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31262880).

26550320 is an abundant number, since it is smaller than the sum of its proper divisors (35975440).

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

26550320 is a wasteful number, since it uses less digits than its factorization.

26550320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293 (or 4287 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 26550320 is about 5152.7002629689. The cubic root of 26550320 is about 298.3251859105.

Adding to 26550320 its reverse (2305562), we get a palindrome (28855882).

The spelling of 26550320 in words is "twenty-six million, five hundred fifty thousand, three hundred twenty".