205550272 has 14 divisors (see below), whose sum is σ = 407888948. Its totient is φ = 102775104.

The previous prime is 205550249. The next prime is 205550309. The reversal of 205550272 is 272055502.

It is a self number, because there is not a number n which added to its sum of digits gives 205550272.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1605798 + ... + 1605925.

Almost surely, 2^205550272 is an apocalyptic number.

It is an amenable number.

205550272 is a deficient number, since it is larger than the sum of its proper divisors (202338676).

205550272 is an equidigital number, since it uses as much as digits as its factorization.

205550272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3211735 (or 3211725 counting only the distinct ones).

The product of its (nonzero) digits is 7000, while the sum is 28.

The square root of 205550272 is about 14337.0245169631. The cubic root of 205550272 is about 590.1639609426.

The spelling of 205550272 in words is "two hundred five million, five hundred fifty thousand, two hundred seventy-two".