22505223747 has 16 divisors (see below), whose sum is σ = 33153477120. Its totient is φ = 13506970752.

The previous prime is 22505223743. The next prime is 22505223749. The reversal of 22505223747 is 74732250522.

It is not a de Polignac number, because 22505223747 - 2² = 22505223743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22505223743) 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 15 ways as a sum of consecutive naturals, for example, 9591847 + ... + 9594192.

It is an arithmetic number, because the mean of its divisors is an integer number (2072092320).

Almost surely, 2^22505223747 is an apocalyptic number.

22505223747 is a deficient number, since it is larger than the sum of its proper divisors (10648253373).

22505223747 is a wasteful number, since it uses less digits than its factorization.

22505223747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19186082.

The product of its (nonzero) digits is 235200, while the sum is 39.

The spelling of 22505223747 in words is "twenty-two billion, five hundred five million, two hundred twenty-three thousand, seven hundred forty-seven".