205500052 has 6 divisors (see below), whose sum is σ = 359625098. Its totient is φ = 102750024.

The previous prime is 205500049. The next prime is 205500059. The reversal of 205500052 is 250005502.

It can be written as a sum of positive squares in only one way, i.e., 203747076 + 1752976 = 14274^2 + 1324^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205500059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25687503 + ... + 25687510.

Almost surely, 2^205500052 is an apocalyptic number.

It is an amenable number.

205500052 is a deficient number, since it is larger than the sum of its proper divisors (154125046).

205500052 is a wasteful number, since it uses less digits than its factorization.

205500052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51375017 (or 51375015 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 19.

The square root of 205500052 is about 14335.2730005396. The cubic root of 205500052 is about 590.1158941155.

Adding to 205500052 its reverse (250005502), we get a palindrome (455505554).

The spelling of 205500052 in words is "two hundred five million, five hundred thousand, fifty-two".