51043552513 has 8 divisors (see below), whose sum is σ = 51546387776. Its totient is φ = 50540857200.

The previous prime is 51043552477. The next prime is 51043552583. The reversal of 51043552513 is 31525534015.

51043552513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-51043552513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51043552583) 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, 794203 + ... + 856063.

It is an arithmetic number, because the mean of its divisors is an integer number (6443298472).

Almost surely, 2^51043552513 is an apocalyptic number.

It is an amenable number.

51043552513 is a deficient number, since it is larger than the sum of its proper divisors (502835263).

51043552513 is a wasteful number, since it uses less digits than its factorization.

51043552513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69975.

The product of its (nonzero) digits is 45000, while the sum is 34.

The spelling of 51043552513 in words is "fifty-one billion, forty-three million, five hundred fifty-two thousand, five hundred thirteen".