32545211021 has 4 divisors (see below), whose sum is σ = 32833221852. Its totient is φ = 32257200192.

The previous prime is 32545210969. The next prime is 32545211029. The reversal of 32545211021 is 12011254523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3377353225 + 29167857796 = 58115^2 + 170786^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32545211021 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32545211029) 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, 144005246 + ... + 144005471.

It is an arithmetic number, because the mean of its divisors is an integer number (8208305463).

Almost surely, 2^32545211021 is an apocalyptic number.

It is an amenable number.

32545211021 is a deficient number, since it is larger than the sum of its proper divisors (288010831).

32545211021 is a wasteful number, since it uses less digits than its factorization.

32545211021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288010830.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 32545211021 its reverse (12011254523), we get a palindrome (44556465544).

The spelling of 32545211021 in words is "thirty-two billion, five hundred forty-five million, two hundred eleven thousand, twenty-one".