22550305905 has 48 divisors (see below), whose sum is σ = 40343304960. Its totient is φ = 11951144352.

The previous prime is 22550305891. The next prime is 22550305907. The reversal of 22550305905 is 50950305522.

22550305905 is a `hidden beast` number, since 22 + 550 + 30 + 59 + 0 + 5 = 666.

It is not a de Polignac number, because 22550305905 - 2¹⁴ = 22550289521 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22550305905.

It is not an unprimeable number, because it can be changed into a prime (22550305907) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3583672 + ... + 3589958.

It is an arithmetic number, because the mean of its divisors is an integer number (840485520).

Almost surely, 2^22550305905 is an apocalyptic number.

It is an amenable number.

22550305905 is a deficient number, since it is larger than the sum of its proper divisors (17792999055).

22550305905 is an equidigital number, since it uses as much as digits as its factorization.

22550305905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6627 (or 6458 counting only the distinct ones).

The product of its (nonzero) digits is 67500, while the sum is 36.

It can be divided in two parts, 22550 and 305905, that added together give a triangular number (328455 = T₈₁₀).

The spelling of 22550305905 in words is "twenty-two billion, five hundred fifty million, three hundred five thousand, nine hundred five".