22501006403 has 4 divisors (see below), whose sum is σ = 22501322568. Its totient is φ = 22500690240.

The previous prime is 22501006397. The next prime is 22501006447. The reversal of 22501006403 is 30460010522.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22501006403 - 2¹⁴ = 22500990019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22501606403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4208 + ... + 212178.

It is an arithmetic number, because the mean of its divisors is an integer number (5625330642).

Almost surely, 2^22501006403 is an apocalyptic number.

22501006403 is a deficient number, since it is larger than the sum of its proper divisors (316165).

22501006403 is a wasteful number, since it uses less digits than its factorization.

22501006403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316164.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 22501006403 its reverse (30460010522), we get a palindrome (52961016925).

The spelling of 22501006403 in words is "twenty-two billion, five hundred one million, six thousand, four hundred three".