200220551 has 2 divisors, whose sum is σ = 200220552. Its totient is φ = 200220550.

The previous prime is 200220547. The next prime is 200220557. The reversal of 200220551 is 155022002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 200220551 - 2² = 200220547 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200220557) 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 as a sum of consecutive naturals, namely, 100110275 + 100110276.

It is an arithmetic number, because the mean of its divisors is an integer number (100110276).

Almost surely, 2^200220551 is an apocalyptic number.

200220551 is a deficient number, since it is larger than the sum of its proper divisors (1).

200220551 is an equidigital number, since it uses as much as digits as its factorization.

200220551 is an odious number, because the sum of its binary digits is odd.

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

The square root of 200220551 is about 14149.9311305745. The cubic root of 200220551 is about 585.0184336851.

Adding to 200220551 its reverse (155022002), we get a palindrome (355242553).

The spelling of 200220551 in words is "two hundred million, two hundred twenty thousand, five hundred fifty-one".