205022512 has 20 divisors (see below), whose sum is σ = 398509960. Its totient is φ = 102181248.

The previous prime is 205022491. The next prime is 205022537. The reversal of 205022512 is 215220502.

It is a self number, because there is not a number n which added to its sum of digits gives 205022512.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15462 + ... + 25477.

It is an arithmetic number, because the mean of its divisors is an integer number (19925498).

Almost surely, 2^205022512 is an apocalyptic number.

It is an amenable number.

205022512 is a deficient number, since it is larger than the sum of its proper divisors (193487448).

205022512 is a wasteful number, since it uses less digits than its factorization.

205022512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41260 (or 41254 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 205022512 is about 14318.6071948357. The cubic root of 205022512 is about 589.6584367922.

The spelling of 205022512 in words is "two hundred five million, twenty-two thousand, five hundred twelve".