3205504530 has 160 divisors (see below), whose sum is σ = 9170599680. Its totient is φ = 800616960.

The previous prime is 3205504529. The next prime is 3205504543. The reversal of 3205504530 is 354055023.

3205504530 is a `hidden beast` number, since 3 + 205 + 5 + 0 + 453 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 3205504494 and 3205504503.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 3731241 + ... + 3732099.

It is an arithmetic number, because the mean of its divisors is an integer number (57316248).

Almost surely, 2^3205504530 is an apocalyptic number.

3205504530 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 3205504530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4585299840).

3205504530 is an abundant number, since it is smaller than the sum of its proper divisors (5965095150).

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

3205504530 is a wasteful number, since it uses less digits than its factorization.

3205504530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166 (or 1157 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 27.

The square root of 3205504530 is about 56617.1752209522. The cubic root of 3205504530 is about 1474.4570680119.

Adding to 3205504530 its reverse (354055023), we get a palindrome (3559559553).

The spelling of 3205504530 in words is "three billion, two hundred five million, five hundred four thousand, five hundred thirty".