51682052013 has 4 divisors (see below), whose sum is σ = 68909402688. Its totient is φ = 34454701340.

The previous prime is 51682052003. The next prime is 51682052017. The reversal of 51682052013 is 31025028615.

51682052013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 51682052013 - 2²⁸ = 51413616557 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51682052017) 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, 8613675333 + ... + 8613675338.

It is an arithmetic number, because the mean of its divisors is an integer number (17227350672).

Almost surely, 2^51682052013 is an apocalyptic number.

It is an amenable number.

51682052013 is a deficient number, since it is larger than the sum of its proper divisors (17227350675).

51682052013 is a wasteful number, since it uses less digits than its factorization.

51682052013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17227350674.

The product of its (nonzero) digits is 14400, while the sum is 33.

The spelling of 51682052013 in words is "fifty-one billion, six hundred eighty-two million, fifty-two thousand, thirteen".