51348400820533 has 48 divisors (see below), whose sum is σ = 55744370951472. Its totient is φ = 47263458816000.

The previous prime is 51348400820503. The next prime is 51348400820557. The reversal of 51348400820533 is 33502800484315.

It can be written as a sum of positive squares in 8 ways, for example, as 2012147924004 + 49336252896529 = 1418502^2 + 7023977^2 .

It is not a de Polignac number, because 51348400820533 - 2⁹ = 51348400820021 is a prime.

It is a super-2 number, since 2×51348400820533² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51348400820503) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 13396397985 + ... + 13396401817.

It is an arithmetic number, because the mean of its divisors is an integer number (1161341061489).

Almost surely, 2^{51348400820533} is an apocalyptic number.

It is an amenable number.

51348400820533 is a deficient number, since it is larger than the sum of its proper divisors (4395970130939).

51348400820533 is a wasteful number, since it uses less digits than its factorization.

51348400820533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7414 (or 7395 counting only the distinct ones).

The product of its (nonzero) digits is 1382400, while the sum is 46.

The spelling of 51348400820533 in words is "fifty-one trillion, three hundred forty-eight billion, four hundred million, eight hundred twenty thousand, five hundred thirty-three".