205454532 has 12 divisors (see below), whose sum is σ = 479393936. Its totient is φ = 68484840.

The previous prime is 205454519. The next prime is 205454533. The reversal of 205454532 is 235454502.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 205454532.

It is not an unprimeable number, because it can be changed into a prime (205454533) 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, 8560594 + ... + 8560617.

Almost surely, 2^205454532 is an apocalyptic number.

It is an amenable number.

205454532 is an abundant number, since it is smaller than the sum of its proper divisors (273939404).

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

205454532 is a wasteful number, since it uses less digits than its factorization.

205454532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17121218 (or 17121216 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 205454532 is about 14333.6852204867. The cubic root of 205454532 is about 590.0723190103.

Subtracting from 205454532 its sum of digits (30), we obtain a palindrome (205454502).

The spelling of 205454532 in words is "two hundred five million, four hundred fifty-four thousand, five hundred thirty-two".