205520044 has 12 divisors (see below), whose sum is σ = 368432568. Its totient is φ = 100253600.

The previous prime is 205520027. The next prime is 205520047. The reversal of 205520044 is 440025502.

It is a junction number, because it is equal to n+sod(n) for n = 205519997 and 205520024.

It is not an unprimeable number, because it can be changed into a prime (205520047) 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, 626422 + ... + 626749.

It is an arithmetic number, because the mean of its divisors is an integer number (30702714).

Almost surely, 2^205520044 is an apocalyptic number.

It is an amenable number.

205520044 is a deficient number, since it is larger than the sum of its proper divisors (162912524).

205520044 is a wasteful number, since it uses less digits than its factorization.

205520044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253216 (or 1253214 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 22.

The square root of 205520044 is about 14335.9702845674. The cubic root of 205520044 is about 590.1350299004.

Adding to 205520044 its reverse (440025502), we get a palindrome (645545546).

The spelling of 205520044 in words is "two hundred five million, five hundred twenty thousand, forty-four".