51540544041 has 16 divisors (see below), whose sum is σ = 78674104704. Its totient is φ = 29400689664.

The previous prime is 51540544007. The next prime is 51540544057. The reversal of 51540544041 is 14044504515.

It is not a de Polignac number, because 51540544041 - 2⁷ = 51540543913 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51540543993 and 51540544011.

It is not an unprimeable number, because it can be changed into a prime (51540544441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2114670 + ... + 2138903.

It is an arithmetic number, because the mean of its divisors is an integer number (4917131544).

Almost surely, 2^51540544041 is an apocalyptic number.

It is an amenable number.

51540544041 is a deficient number, since it is larger than the sum of its proper divisors (27133560663).

51540544041 is a wasteful number, since it uses less digits than its factorization.

51540544041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4254160.

The product of its (nonzero) digits is 32000, while the sum is 33.

The spelling of 51540544041 in words is "fifty-one billion, five hundred forty million, five hundred forty-four thousand, forty-one".