51056433330 has 64 divisors (see below), whose sum is σ = 141048069120. Its totient is φ = 11586078144.

The previous prime is 51056433287. The next prime is 51056433331. The reversal of 51056433330 is 3333465015.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 51056433291 and 51056433300.

It is not an unprimeable number, because it can be changed into a prime (51056433331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 845364 + ... + 903743.

It is an arithmetic number, because the mean of its divisors is an integer number (2203876080).

Almost surely, 2^51056433330 is an apocalyptic number.

51056433330 is an abundant number, since it is smaller than the sum of its proper divisors (89991635790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51056433330 is a wasteful number, since it uses less digits than its factorization.

51056433330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1749263.

The product of its (nonzero) digits is 48600, while the sum is 33.

Adding to 51056433330 its reverse (3333465015), we get a palindrome (54389898345).

The spelling of 51056433330 in words is "fifty-one billion, fifty-six million, four hundred thirty-three thousand, three hundred thirty".