206950501 has 2 divisors, whose sum is σ = 206950502. Its totient is φ = 206950500.

The previous prime is 206950487. The next prime is 206950511. The reversal of 206950501 is 105059602.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194630401 + 12320100 = 13951^2 + 3510^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206950501 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206950501.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206950511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103475250 + 103475251.

It is an arithmetic number, because the mean of its divisors is an integer number (103475251).

Almost surely, 2^206950501 is an apocalyptic number.

It is an amenable number.

206950501 is a deficient number, since it is larger than the sum of its proper divisors (1).

206950501 is an equidigital number, since it uses as much as digits as its factorization.

206950501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 206950501 is about 14385.7742579258. The cubic root of 206950501 is about 591.5010147734.

The spelling of 206950501 in words is "two hundred six million, nine hundred fifty thousand, five hundred one".