22508054450 has 90 divisors (see below), whose sum is σ = 48952626039. Its totient is φ = 7699224960.

The previous prime is 22508054389. The next prime is 22508054479. The reversal of 22508054450 is 5445080522.

It can be written as a sum of positive squares in 5 ways, for example, as 884646049 + 21623408401 = 29743^2 + 147049^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=106085.

It is a super-2 number, since 2×22508054450² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22508054450.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 51981434 + ... + 51981866.

Almost surely, 2^22508054450 is an apocalyptic number.

22508054450 is an abundant number, since it is smaller than the sum of its proper divisors (26444571589).

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

22508054450 is an frugal number, since it uses more digits than its factorization.

22508054450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906 (or 447 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 35.

The spelling of 22508054450 in words is "twenty-two billion, five hundred eight million, fifty-four thousand, four hundred fifty".