206480051 has 2 divisors, whose sum is σ = 206480052. Its totient is φ = 206480050.

The previous prime is 206480047. The next prime is 206480063. The reversal of 206480051 is 150084602.

206480051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 206480051 - 2² = 206480047 is a prime.

It is a super-2 number, since 2×206480051² = 85268022921925202, which contains 22 as substring.

It is a Sophie Germain prime.

It is a self number, because there is not a number n which added to its sum of digits gives 206480051.

It is not a weakly prime, because it can be changed into another prime (206480081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103240025 + 103240026.

It is an arithmetic number, because the mean of its divisors is an integer number (103240026).

Almost surely, 2^206480051 is an apocalyptic number.

206480051 is a deficient number, since it is larger than the sum of its proper divisors (1).

206480051 is an equidigital number, since it uses as much as digits as its factorization.

206480051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 206480051 is about 14369.4137319516. The cubic root of 206480051 is about 591.0524650349.

The spelling of 206480051 in words is "two hundred six million, four hundred eighty thousand, fifty-one".