51112540011 has 32 divisors (see below), whose sum is σ = 73703024640. Its totient is φ = 31321027584.

The previous prime is 51112540007. The next prime is 51112540021. The reversal of 51112540011 is 11004521115.

It is not a de Polignac number, because 51112540011 - 2² = 51112540007 is a prime.

It is a super-2 number, since 2×51112540011² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51112540011.

It is not an unprimeable number, because it can be changed into a prime (51112540001) 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 31 ways as a sum of consecutive naturals, for example, 9916411 + ... + 9921563.

It is an arithmetic number, because the mean of its divisors is an integer number (2303219520).

Almost surely, 2^51112540011 is an apocalyptic number.

51112540011 is a deficient number, since it is larger than the sum of its proper divisors (22590484629).

51112540011 is a wasteful number, since it uses less digits than its factorization.

51112540011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6195.

The product of its (nonzero) digits is 200, while the sum is 21.

The spelling of 51112540011 in words is "fifty-one billion, one hundred twelve million, five hundred forty thousand, eleven".