205715652 has 24 divisors (see below), whose sum is σ = 480243456. Its totient is φ = 68537568.

The previous prime is 205715621. The next prime is 205715669. The reversal of 205715652 is 256517502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35298 + ... + 40710.

It is an arithmetic number, because the mean of its divisors is an integer number (20010144).

Almost surely, 2^205715652 is an apocalyptic number.

It is an amenable number.

205715652 is an abundant number, since it is smaller than the sum of its proper divisors (274527804).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

205715652 is a wasteful number, since it uses less digits than its factorization.

205715652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8587 (or 8585 counting only the distinct ones).

The product of its (nonzero) digits is 21000, while the sum is 33.

The square root of 205715652 is about 14342.7909417937. The cubic root of 205715652 is about 590.3221949857.

The spelling of 205715652 in words is "two hundred five million, seven hundred fifteen thousand, six hundred fifty-two".