51356053434 has 32 divisors (see below), whose sum is σ = 117431525376. Its totient is φ = 14667375600.

The previous prime is 51356053433. The next prime is 51356053453. The reversal of 51356053434 is 43435065315.

It is a junction number, because it is equal to n+sod(n) for n = 51356053392 and 51356053401.

It is not an unprimeable number, because it can be changed into a prime (51356053433) 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 15 ways as a sum of consecutive naturals, for example, 132522 + ... + 346805.

It is an arithmetic number, because the mean of its divisors is an integer number (3669735168).

Almost surely, 2^51356053434 is an apocalyptic number.

51356053434 is an abundant number, since it is smaller than the sum of its proper divisors (66075471942).

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

51356053434 is a wasteful number, since it uses less digits than its factorization.

51356053434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481890.

The product of its (nonzero) digits is 324000, while the sum is 39.

The spelling of 51356053434 in words is "fifty-one billion, three hundred fifty-six million, fifty-three thousand, four hundred thirty-four".