33525430220 has 48 divisors (see below), whose sum is σ = 72185250816. Its totient is φ = 13071360000.

The previous prime is 33525430189. The next prime is 33525430241. The reversal of 33525430220 is 2203452533.

It is a super-2 number, since 2×33525430220² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 926060 + ... + 961580.

It is an arithmetic number, because the mean of its divisors is an integer number (1503859392).

Almost surely, 2^33525430220 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 33525430220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36092625408).

33525430220 is an abundant number, since it is smaller than the sum of its proper divisors (38659820596).

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

33525430220 is a wasteful number, since it uses less digits than its factorization.

33525430220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36722 (or 36720 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 29.

Adding to 33525430220 its reverse (2203452533), we get a palindrome (35728882753).

The spelling of 33525430220 in words is "thirty-three billion, five hundred twenty-five million, four hundred thirty thousand, two hundred twenty".