205056651 has 8 divisors (see below), whose sum is σ = 282836880. Its totient is φ = 131990432.

The previous prime is 205056647. The next prime is 205056653. The reversal of 205056651 is 156650502.

205056651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205056651 - 2² = 205056647 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205056653) 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, 1178400 + ... + 1178573.

It is an arithmetic number, because the mean of its divisors is an integer number (35354610).

Almost surely, 2^205056651 is an apocalyptic number.

205056651 is a deficient number, since it is larger than the sum of its proper divisors (77780229).

205056651 is a wasteful number, since it uses less digits than its factorization.

205056651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2357005.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 205056651 is about 14319.7992653528. The cubic root of 205056651 is about 589.6911636570.

The spelling of 205056651 in words is "two hundred five million, fifty-six thousand, six hundred fifty-one".