20132533572 has 48 divisors (see below), whose sum is σ = 47879318592. Its totient is φ = 6581877120.

The previous prime is 20132533571. The next prime is 20132533637. The reversal of 20132533572 is 27533523102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20132533571) 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 15 ways as a sum of consecutive naturals, for example, 3302247 + ... + 3308337.

It is an arithmetic number, because the mean of its divisors is an integer number (997485804).

Almost surely, 2^20132533572 is an apocalyptic number.

It is an amenable number.

20132533572 is an abundant number, since it is smaller than the sum of its proper divisors (27746785020).

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

20132533572 is a wasteful number, since it uses less digits than its factorization.

20132533572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11348 (or 11346 counting only the distinct ones).

The product of its (nonzero) digits is 37800, while the sum is 33.

The spelling of 20132533572 in words is "twenty billion, one hundred thirty-two million, five hundred thirty-three thousand, five hundred seventy-two".