32020220505 has 128 divisors (see below), whose sum is σ = 64953778176. Its totient is φ = 13107225600.

The previous prime is 32020220501. The next prime is 32020220527. The reversal of 32020220505 is 50502202023.

It is not a de Polignac number, because 32020220505 - 2² = 32020220501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (32020220501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 21766920 + ... + 21768390.

It is an arithmetic number, because the mean of its divisors is an integer number (507451392).

Almost surely, 2^32020220505 is an apocalyptic number.

32020220505 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

32020220505 is an abundant number, since it is smaller than the sum of its proper divisors (32933557671).

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

32020220505 is a wasteful number, since it uses less digits than its factorization.

32020220505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1967.

The product of its (nonzero) digits is 1200, while the sum is 21.

Adding to 32020220505 its reverse (50502202023), we get a palindrome (82522422528).

The spelling of 32020220505 in words is "thirty-two billion, twenty million, two hundred twenty thousand, five hundred five".