205551233 has 8 divisors (see below), whose sum is σ = 218557440. Its totient is φ = 192646720.

The previous prime is 205551209. The next prime is 205551259. The reversal of 205551233 is 332155502.

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

It is not a de Polignac number, because 205551233 - 2¹² = 205547137 is a prime.

It is not an unprimeable number, because it can be changed into a prime (205551263) 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, 21233 + ... + 29358.

It is an arithmetic number, because the mean of its divisors is an integer number (27319680).

Almost surely, 2^205551233 is an apocalyptic number.

It is an amenable number.

205551233 is a deficient number, since it is larger than the sum of its proper divisors (13006207).

205551233 is a wasteful number, since it uses less digits than its factorization.

205551233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50847.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 205551233 is about 14337.0580315489. The cubic root of 205551233 is about 590.1648806636.

The spelling of 205551233 in words is "two hundred five million, five hundred fifty-one thousand, two hundred thirty-three".