10001100550 has 48 divisors (see below), whose sum is σ = 21296136960. Its totient is φ = 3423036960.

The previous prime is 10001100523. The next prime is 10001100559. The reversal of 10001100550 is 5500110001.

It is a super-2 number, since 2×10001100550² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10001100550.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001100559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 181111 + ... + 229789.

It is an arithmetic number, because the mean of its divisors is an integer number (443669520).

Almost surely, 2^10001100550 is an apocalyptic number.

10001100550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10001100550 is an abundant number, since it is smaller than the sum of its proper divisors (11295036410).

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

10001100550 is a wasteful number, since it uses less digits than its factorization.

10001100550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49285 (or 49280 counting only the distinct ones).

The product of its (nonzero) digits is 25, while the sum is 13.

Adding to 10001100550 its reverse (5500110001), we get a palindrome (15501210551).

The spelling of 10001100550 in words is "ten billion, one million, one hundred thousand, five hundred fifty".