22552509851 has 2 divisors, whose sum is σ = 22552509852. Its totient is φ = 22552509850.

The previous prime is 22552509817. The next prime is 22552509853. The reversal of 22552509851 is 15890525522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22552509851 is a prime.

Together with 22552509853, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (22552509853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11276254925 + 11276254926.

It is an arithmetic number, because the mean of its divisors is an integer number (11276254926).

Almost surely, 2^22552509851 is an apocalyptic number.

22552509851 is a deficient number, since it is larger than the sum of its proper divisors (1).

22552509851 is an equidigital number, since it uses as much as digits as its factorization.

22552509851 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360000, while the sum is 44.

The spelling of 22552509851 in words is "twenty-two billion, five hundred fifty-two million, five hundred nine thousand, eight hundred fifty-one".