22554243257 has 16 divisors (see below), whose sum is σ = 27763008000. Its totient is φ = 17842583232.

The previous prime is 22554243209. The next prime is 22554243289. The reversal of 22554243257 is 75234245522.

It is a cyclic number.

It is not a de Polignac number, because 22554243257 - 2¹⁶ = 22554177721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22554243557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874448 + ... + 899870.

It is an arithmetic number, because the mean of its divisors is an integer number (1735188000).

Almost surely, 2^22554243257 is an apocalyptic number.

It is an amenable number.

22554243257 is a deficient number, since it is larger than the sum of its proper divisors (5208764743).

22554243257 is a wasteful number, since it uses less digits than its factorization.

22554243257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35192.

The product of its digits is 672000, while the sum is 41.

Adding to 22554243257 its reverse (75234245522), we get a palindrome (97788488779).

The spelling of 22554243257 in words is "twenty-two billion, five hundred fifty-four million, two hundred forty-three thousand, two hundred fifty-seven".