21232575032 has 16 divisors (see below), whose sum is σ = 39812666400. Its totient is φ = 10615864000.

The previous prime is 21232575029. The next prime is 21232575037. The reversal of 21232575032 is 23057523212.

It is a self number, because there is not a number n which added to its sum of digits gives 21232575032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21232575037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 293444 + ... + 358572.

It is an arithmetic number, because the mean of its divisors is an integer number (2488291650).

Almost surely, 2^21232575032 is an apocalyptic number.

It is an amenable number.

21232575032 is a deficient number, since it is larger than the sum of its proper divisors (18580091368).

21232575032 is a wasteful number, since it uses less digits than its factorization.

21232575032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105886 (or 105882 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 21232575032 in words is "twenty-one billion, two hundred thirty-two million, five hundred seventy-five thousand, thirty-two".