32505315313 has 8 divisors (see below), whose sum is σ = 32540304456. Its totient is φ = 32470348800.

The previous prime is 32505315277. The next prime is 32505315331. The reversal of 32505315313 is 31351350523.

It can be written as a sum of positive squares in 4 ways, for example, as 7954499344 + 24550815969 = 89188^2 + 156687^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32505315313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32505315373) 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, 4666153 + ... + 4673113.

It is an arithmetic number, because the mean of its divisors is an integer number (4067538057).

Almost surely, 2^32505315313 is an apocalyptic number.

It is an amenable number.

32505315313 is a deficient number, since it is larger than the sum of its proper divisors (34989143).

32505315313 is a wasteful number, since it uses less digits than its factorization.

32505315313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11315.

The product of its (nonzero) digits is 20250, while the sum is 31.

Adding to 32505315313 its reverse (31351350523), we get a palindrome (63856665836).

The spelling of 32505315313 in words is "thirty-two billion, five hundred five million, three hundred fifteen thousand, three hundred thirteen".