205541063 has 16 divisors (see below), whose sum is σ = 256447296. Its totient is φ = 160392960.

The previous prime is 205541057. The next prime is 205541071. The reversal of 205541063 is 360145502.

It is not a de Polignac number, because 205541063 - 2¹⁸ = 205278919 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205541023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8828 + ... + 22113.

It is an arithmetic number, because the mean of its divisors is an integer number (16027956).

Almost surely, 2^205541063 is an apocalyptic number.

205541063 is a deficient number, since it is larger than the sum of its proper divisors (50906233).

205541063 is a wasteful number, since it uses less digits than its factorization.

205541063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31034.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 205541063 is about 14336.7033518867. The cubic root of 205541063 is about 590.1551473629.

Adding to 205541063 its reverse (360145502), we get a palindrome (565686565).

The spelling of 205541063 in words is "two hundred five million, five hundred forty-one thousand, sixty-three".