205510152 has 48 divisors (see below), whose sum is σ = 537117840. Its totient is φ = 65520928.

The previous prime is 205510133. The next prime is 205510171. The reversal of 205510152 is 251015502.

205510152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (205510133) and next prime (205510171).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4603 + ... + 20789.

It is an arithmetic number, because the mean of its divisors is an integer number (11189955).

Almost surely, 2^205510152 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 205510152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (268558920).

205510152 is an abundant number, since it is smaller than the sum of its proper divisors (331607688).

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

205510152 is a wasteful number, since it uses less digits than its factorization.

205510152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16242 (or 16215 counting only the distinct ones).

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 205510152 is about 14335.6252741204. The cubic root of 205510152 is about 590.1255617089.

Adding to 205510152 its reverse (251015502), we get a palindrome (456525654).

The spelling of 205510152 in words is "two hundred five million, five hundred ten thousand, one hundred fifty-two".