205531053 has 16 divisors (see below), whose sum is σ = 337282176. Its totient is φ = 108411840.

The previous prime is 205531049. The next prime is 205531087. The reversal of 205531053 is 350135502.

It is not a de Polignac number, because 205531053 - 2² = 205531049 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205531153) 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, 376158 + ... + 376703.

It is an arithmetic number, because the mean of its divisors is an integer number (21080136).

Almost surely, 2^205531053 is an apocalyptic number.

It is an amenable number.

205531053 is a deficient number, since it is larger than the sum of its proper divisors (131751123).

205531053 is a wasteful number, since it uses less digits than its factorization.

205531053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752884.

The product of its (nonzero) digits is 2250, while the sum is 24.

The square root of 205531053 is about 14336.3542436702. The cubic root of 205531053 is about 590.1455668784.

Adding to 205531053 its reverse (350135502), we get a palindrome (555666555).

The spelling of 205531053 in words is "two hundred five million, five hundred thirty-one thousand, fifty-three".