51000504453313 has 4 divisors (see below), whose sum is σ = 52759142537940. Its totient is φ = 49241866368688.

The previous prime is 51000504453289. The next prime is 51000504453347. The reversal of 51000504453313 is 31335440500015.

51000504453313 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.

It can be written as a sum of positive squares in 2 ways, for example, as 9689972088384 + 41310532364929 = 3112872^2 + 6427327^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51000504453313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51000504454313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 879319042270 + ... + 879319042327.

It is an arithmetic number, because the mean of its divisors is an integer number (13189785634485).

Almost surely, 2^{51000504453313} is an apocalyptic number.

It is an amenable number.

51000504453313 is a deficient number, since it is larger than the sum of its proper divisors (1758638084627).

51000504453313 is a wasteful number, since it uses less digits than its factorization.

51000504453313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1758638084626.

The product of its (nonzero) digits is 54000, while the sum is 34.

Adding to 51000504453313 its reverse (31335440500015), we get a palindrome (82335944953328).

The spelling of 51000504453313 in words is "fifty-one trillion, five hundred four million, four hundred fifty-three thousand, three hundred thirteen".