22520443003 has 4 divisors (see below), whose sum is σ = 22521948840. Its totient is φ = 22518937168.

The previous prime is 22520442979. The next prime is 22520443009. The reversal of 22520443003 is 30034402522.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22520443003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22520443009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 730258 + ... + 760471.

It is an arithmetic number, because the mean of its divisors is an integer number (5630487210).

Almost surely, 2^22520443003 is an apocalyptic number.

22520443003 is a deficient number, since it is larger than the sum of its proper divisors (1505837).

22520443003 is a wasteful number, since it uses less digits than its factorization.

22520443003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505836.

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 22520443003 its reverse (30034402522), we get a palindrome (52554845525).

The spelling of 22520443003 in words is "twenty-two billion, five hundred twenty million, four hundred forty-three thousand, three".