205550568 has 32 divisors (see below), whose sum is σ = 570974400. Its totient is φ = 68516784.

The previous prime is 205550567. The next prime is 205550581. The reversal of 205550568 is 865055502.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (205550561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 475596 + ... + 476027.

It is an arithmetic number, because the mean of its divisors is an integer number (17842950).

Almost surely, 2^205550568 is an apocalyptic number.

It is an amenable number.

205550568 is an abundant number, since it is smaller than the sum of its proper divisors (365423832).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205550568 is a wasteful number, since it uses less digits than its factorization.

205550568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951638 (or 951628 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

The square root of 205550568 is about 14337.0348398823. The cubic root of 205550568 is about 590.1642442284.

The spelling of 205550568 in words is "two hundred five million, five hundred fifty thousand, five hundred sixty-eight".