205097633 has 4 divisors (see below), whose sum is σ = 220874388. Its totient is φ = 189320880.

The previous prime is 205097593. The next prime is 205097671. The reversal of 205097633 is 336790502.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 96687889 + 108409744 = 9833^2 + 10412^2 .

It is a cyclic number.

It is not a de Polignac number, because 205097633 - 2⁸ = 205097377 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 205097593 and 205097602.

It is not an unprimeable number, because it can be changed into a prime (205097033) 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, 7888358 + ... + 7888383.

It is an arithmetic number, because the mean of its divisors is an integer number (55218597).

Almost surely, 2^205097633 is an apocalyptic number.

It is an amenable number.

205097633 is a deficient number, since it is larger than the sum of its proper divisors (15776755).

205097633 is a wasteful number, since it uses less digits than its factorization.

205097633 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15776754.

The product of its (nonzero) digits is 34020, while the sum is 35.

The square root of 205097633 is about 14321.2301496764. The cubic root of 205097633 is about 589.7304456691.

The spelling of 205097633 in words is "two hundred five million, ninety-seven thousand, six hundred thirty-three".