51233365641550 has 12 divisors (see below), whose sum is σ = 95294060093376. Its totient is φ = 20493346256600.

The previous prime is 51233365641539. The next prime is 51233365641551. The reversal of 51233365641550 is 5514656333215.

51233365641550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51233365641494 and 51233365641503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51233365641551) 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 5 ways as a sum of consecutive naturals, for example, 512333656366 + ... + 512333656465.

It is an arithmetic number, because the mean of its divisors is an integer number (7941171674448).

Almost surely, 2^{51233365641550} is an apocalyptic number.

51233365641550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51233365641550 is a deficient number, since it is larger than the sum of its proper divisors (44060694451826).

51233365641550 is a wasteful number, since it uses less digits than its factorization.

51233365641550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024667312843 (or 1024667312838 counting only the distinct ones).

The product of its (nonzero) digits is 4860000, while the sum is 49.

The spelling of 51233365641550 in words is "fifty-one trillion, two hundred thirty-three billion, three hundred sixty-five million, six hundred forty-one thousand, five hundred fifty".