32545320421 has 8 divisors (see below), whose sum is σ = 34496544600. Its totient is φ = 30598184448.

The previous prime is 32545320391. The next prime is 32545320427. The reversal of 32545320421 is 12402354523.

It can be written as a sum of positive squares in 4 ways, for example, as 4887967396 + 27657353025 = 69914^2 + 166305^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 32545320421 - 2¹⁷ = 32545189349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32545320427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1005646 + ... + 1037503.

It is an arithmetic number, because the mean of its divisors is an integer number (4312068075).

Almost surely, 2^32545320421 is an apocalyptic number.

It is an amenable number.

32545320421 is a deficient number, since it is larger than the sum of its proper divisors (1951224179).

32545320421 is a wasteful number, since it uses less digits than its factorization.

32545320421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2044103.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 32545320421 its reverse (12402354523), we get a palindrome (44947674944).

The spelling of 32545320421 in words is "thirty-two billion, five hundred forty-five million, three hundred twenty thousand, four hundred twenty-one".