22023312550 has 24 divisors (see below), whose sum is σ = 41423632200. Its totient is φ = 8710342080.

The previous prime is 22023312539. The next prime is 22023312569. The reversal of 22023312550 is 5521332022.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2470080 + ... + 2478979.

It is an arithmetic number, because the mean of its divisors is an integer number (1725984675).

Almost surely, 2^22023312550 is an apocalyptic number.

22023312550 is a deficient number, since it is larger than the sum of its proper divisors (19400319650).

22023312550 is a wasteful number, since it uses less digits than its factorization.

22023312550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4949160 (or 4949155 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 22023312550 its reverse (5521332022), we get a palindrome (27544644572).

The spelling of 22023312550 in words is "twenty-two billion, twenty-three million, three hundred twelve thousand, five hundred fifty".