22515000545 has 8 divisors (see below), whose sum is σ = 27388110696. Its totient is φ = 17765260416.

The previous prime is 22515000527. The next prime is 22515000581. The reversal of 22515000545 is 54500051522.

It can be written as a sum of positive squares in 4 ways, for example, as 6599761 + 22508400784 = 2569^2 + 150028^2 .

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 22515000545 - 2⁸ = 22515000289 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30842102 + ... + 30842831.

It is an arithmetic number, because the mean of its divisors is an integer number (3423513837).

Almost surely, 2^22515000545 is an apocalyptic number.

It is an amenable number.

22515000545 is a deficient number, since it is larger than the sum of its proper divisors (4873110151).

22515000545 is an equidigital number, since it uses as much as digits as its factorization.

22515000545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61685011.

The product of its (nonzero) digits is 10000, while the sum is 29.

The spelling of 22515000545 in words is "twenty-two billion, five hundred fifteen million, five hundred forty-five", and thus it is an aban number.