205513072 has 10 divisors (see below), whose sum is σ = 398181608. Its totient is φ = 102756528.

The previous prime is 205513067. The next prime is 205513079. The reversal of 205513072 is 270315502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205513079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6422268 + ... + 6422299.

Almost surely, 2^205513072 is an apocalyptic number.

It is an amenable number.

205513072 is a deficient number, since it is larger than the sum of its proper divisors (192668536).

205513072 is a wasteful number, since it uses less digits than its factorization.

205513072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12844575 (or 12844569 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 25.

The square root of 205513072 is about 14335.7271179386. The cubic root of 205513072 is about 590.1283566373.

Adding to 205513072 its reverse (270315502), we get a palindrome (475828574).

The spelling of 205513072 in words is "two hundred five million, five hundred thirteen thousand, seventy-two".