22200551 has 2 divisors, whose sum is σ = 22200552. Its totient is φ = 22200550.

The previous prime is 22200547. The next prime is 22200601. The reversal of 22200551 is 15500222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22200551 - 2² = 22200547 is a prime.

It is a Chen prime.

It is equal to p_1401038 and since 22200551 and 1401038 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22280551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11100275 + 11100276.

It is an arithmetic number, because the mean of its divisors is an integer number (11100276).

Almost surely, 2^22200551 is an apocalyptic number.

22200551 is a deficient number, since it is larger than the sum of its proper divisors (1).

22200551 is an equidigital number, since it uses as much as digits as its factorization.

22200551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 22200551 is about 4711.7460670117. The cubic root of 22200551 is about 281.0528009592.

Adding to 22200551 its reverse (15500222), we get a palindrome (37700773).

The spelling of 22200551 in words is "twenty-two million, two hundred thousand, five hundred fifty-one".