205315552 has 48 divisors (see below), whose sum is σ = 444612672. Its totient is φ = 92736000.

The previous prime is 205315547. The next prime is 205315571. The reversal of 205315552 is 255513502.

It is a self number, because there is not a number n which added to its sum of digits gives 205315552.

It is a congruent number.

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, 14302 + ... + 24802.

It is an arithmetic number, because the mean of its divisors is an integer number (9262764).

Almost surely, 2^205315552 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 205315552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (222306336).

205315552 is an abundant number, since it is smaller than the sum of its proper divisors (239297120).

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

205315552 is a wasteful number, since it uses less digits than its factorization.

205315552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10571 (or 10563 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 205315552 is about 14328.8363798321. The cubic root of 205315552 is about 589.9392372548.

The spelling of 205315552 in words is "two hundred five million, three hundred fifteen thousand, five hundred fifty-two".