26550355500 has 384 divisors, whose sum is σ = 90181728000. Its totient is φ = 6735052800.

The previous prime is 26550355477. The next prime is 26550355501. The reversal of 26550355500 is 555305562.

26550355500 is a `hidden beast` number, since 2 + 6 + 550 + 3 + 55 + 50 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (26550355501) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 28579036 + ... + 28579964.

It is an arithmetic number, because the mean of its divisors is an integer number (234848250).

Almost surely, 2^26550355500 is an apocalyptic number.

26550355500 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 26550355500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45090864000).

26550355500 is an abundant number, since it is smaller than the sum of its proper divisors (63631372500).

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

26550355500 is a wasteful number, since it uses less digits than its factorization.

26550355500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1041 counting only the distinct ones).

The product of its (nonzero) digits is 112500, while the sum is 36.

The spelling of 26550355500 in words is "twenty-six billion, five hundred fifty million, three hundred fifty-five thousand, five hundred".