206417055 has 16 divisors (see below), whose sum is σ = 355672800. Its totient is φ = 101620608.

The previous prime is 206417053. The next prime is 206417069. The reversal of 206417055 is 550714602.

It is not a de Polignac number, because 206417055 - 2¹ = 206417053 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206417053) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529080 + ... + 529469.

It is an arithmetic number, because the mean of its divisors is an integer number (22229550).

Almost surely, 2^206417055 is an apocalyptic number.

206417055 is a deficient number, since it is larger than the sum of its proper divisors (149255745).

206417055 is a wasteful number, since it uses less digits than its factorization.

206417055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1058570.

The product of its (nonzero) digits is 8400, while the sum is 30.

The square root of 206417055 is about 14367.2215476758. The cubic root of 206417055 is about 590.9923499000.

The spelling of 206417055 in words is "two hundred six million, four hundred seventeen thousand, fifty-five".