22755842257 has 4 divisors (see below), whose sum is σ = 22756150180. Its totient is φ = 22755534336.

The previous prime is 22755842251. The next prime is 22755842287. The reversal of 22755842257 is 75224855722.

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 can be written as a sum of positive squares in 2 ways, for example, as 7943978641 + 14811863616 = 89129^2 + 121704^2 .

It is a 3-Lehmer number, since φ(22755842257) divides (22755842257-1)³.

It is a cyclic number.

It is not a de Polignac number, because 22755842257 - 2¹¹ = 22755840209 is a prime.

It is a super-3 number, since 3×22755842257³ (a number of 32 digits) contains 333 as substring.

It is a deceptive number, since it divides R_22755842256.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22755842257.

It is not an unprimeable number, because it can be changed into a prime (22755842251) 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, 30793 + ... + 215545.

It is an arithmetic number, because the mean of its divisors is an integer number (5689037545).

Almost surely, 2^22755842257 is an apocalyptic number.

22755842257 is the 123169-th pentagonal number.

It is an amenable number.

22755842257 is a deficient number, since it is larger than the sum of its proper divisors (307923).

22755842257 is a wasteful number, since it uses less digits than its factorization.

22755842257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307922.

The product of its digits is 3136000, while the sum is 49.

The spelling of 22755842257 in words is "twenty-two billion, seven hundred fifty-five million, eight hundred forty-two thousand, two hundred fifty-seven".