22551515513 has 8 divisors (see below), whose sum is σ = 23164472448. Its totient is φ = 21944106064.

The previous prime is 22551515501. The next prime is 22551515521. The reversal of 22551515513 is 31551515522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22551515513 - 2¹² = 22551511417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22551515573) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1378631 + ... + 1394892.

It is an arithmetic number, because the mean of its divisors is an integer number (2895559056).

Almost surely, 2^22551515513 is an apocalyptic number.

It is an amenable number.

22551515513 is a deficient number, since it is larger than the sum of its proper divisors (612956935).

22551515513 is a wasteful number, since it uses less digits than its factorization.

22551515513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2773743.

The product of its digits is 37500, while the sum is 35.

Subtracting 22551515513 from its reverse (31551515522), we obtain a palindrome (9000000009).

The spelling of 22551515513 in words is "twenty-two billion, five hundred fifty-one million, five hundred fifteen thousand, five hundred thirteen".