200556061 has 2 divisors, whose sum is σ = 200556062. Its totient is φ = 200556060.

The previous prime is 200556053. The next prime is 200556079. The reversal of 200556061 is 160655002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156400036 + 44156025 = 12506^2 + 6645^2 .

It is a cyclic number.

It is not a de Polignac number, because 200556061 - 2³ = 200556053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (200556091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100278030 + 100278031.

It is an arithmetic number, because the mean of its divisors is an integer number (100278031).

Almost surely, 2^200556061 is an apocalyptic number.

It is an amenable number.

200556061 is a deficient number, since it is larger than the sum of its proper divisors (1).

200556061 is an equidigital number, since it uses as much as digits as its factorization.

200556061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 200556061 is about 14161.7817028791. The cubic root of 200556061 is about 585.3450235387.

The spelling of 200556061 in words is "two hundred million, five hundred fifty-six thousand, sixty-one".