32320552513 has 4 divisors (see below), whose sum is σ = 32377355460. Its totient is φ = 32263749568.

The previous prime is 32320552493. The next prime is 32320552597. The reversal of 32320552513 is 31525502323.

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 12403722384 + 19916830129 = 111372^2 + 141127^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32320552513 is a prime.

It is a super-3 number, since 3×32320552513³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32320552013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28400620 + ... + 28401757.

It is an arithmetic number, because the mean of its divisors is an integer number (8094338865).

Almost surely, 2^32320552513 is an apocalyptic number.

It is an amenable number.

32320552513 is a deficient number, since it is larger than the sum of its proper divisors (56802947).

32320552513 is an equidigital number, since it uses as much as digits as its factorization.

32320552513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56802946.

The product of its (nonzero) digits is 27000, while the sum is 31.

The spelling of 32320552513 in words is "thirty-two billion, three hundred twenty million, five hundred fifty-two thousand, five hundred thirteen".