51112531535 has 48 divisors (see below), whose sum is σ = 67550014080. Its totient is φ = 37102665600.

The previous prime is 51112531531. The next prime is 51112531573. The reversal of 51112531535 is 53513521115.

It is not a de Polignac number, because 51112531535 - 2² = 51112531531 is a prime.

It is a super-3 number, since 3×51112531535³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51112531531) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48631760 + ... + 48632810.

It is an arithmetic number, because the mean of its divisors is an integer number (1407291960).

Almost surely, 2^51112531535 is an apocalyptic number.

51112531535 is a deficient number, since it is larger than the sum of its proper divisors (16437482545).

51112531535 is a wasteful number, since it uses less digits than its factorization.

51112531535 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2008 (or 1995 counting only the distinct ones).

The product of its digits is 11250, while the sum is 32.

The spelling of 51112531535 in words is "fifty-one billion, one hundred twelve million, five hundred thirty-one thousand, five hundred thirty-five".