205051633 has 4 divisors (see below), whose sum is σ = 205183728. Its totient is φ = 204919540.

The previous prime is 205051631. The next prime is 205051643. The reversal of 205051633 is 336150502.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 205051633 - 2¹ = 205051631 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205051598 and 205051607.

It is not an unprimeable number, because it can be changed into a prime (205051631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63691 + ... + 66832.

It is an arithmetic number, because the mean of its divisors is an integer number (51295932).

Almost surely, 2^205051633 is an apocalyptic number.

It is an amenable number.

205051633 is a deficient number, since it is larger than the sum of its proper divisors (132095).

205051633 is a wasteful number, since it uses less digits than its factorization.

205051633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132094.

The product of its (nonzero) digits is 2700, while the sum is 25.

The square root of 205051633 is about 14319.6240523276. The cubic root of 205051633 is about 589.6863534507.

The spelling of 205051633 in words is "two hundred five million, fifty-one thousand, six hundred thirty-three".