22053506550 has 48 divisors (see below), whose sum is σ = 55234246032. Its totient is φ = 5822704000.

The previous prime is 22053506537. The next prime is 22053506551. The reversal of 22053506550 is 5560535022.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22053506551) 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, 712689 + ... + 742988.

It is an arithmetic number, because the mean of its divisors is an integer number (1150713459).

Almost surely, 2^22053506550 is an apocalyptic number.

22053506550 is an abundant number, since it is smaller than the sum of its proper divisors (33180739482).

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

22053506550 is a wasteful number, since it uses less digits than its factorization.

22053506550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1455793 (or 1455788 counting only the distinct ones).

The product of its (nonzero) digits is 45000, while the sum is 33.

The spelling of 22053506550 in words is "twenty-two billion, fifty-three million, five hundred six thousand, five hundred fifty".