51535433516 has 24 divisors (see below), whose sum is σ = 104817834240. Its totient is φ = 21712264272.

The previous prime is 51535433491. The next prime is 51535433569. The reversal of 51535433516 is 61533453515.

It is a super-2 number, since 2×51535433516² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15596240 + ... + 15599543.

It is an arithmetic number, because the mean of its divisors is an integer number (4367409760).

Almost surely, 2^51535433516 is an apocalyptic number.

It is an amenable number.

51535433516 is an abundant number, since it is smaller than the sum of its proper divisors (53282400724).

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

51535433516 is a wasteful number, since it uses less digits than its factorization.

51535433516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31195853 (or 31195851 counting only the distinct ones).

The product of its digits is 405000, while the sum is 41.

The spelling of 51535433516 in words is "fifty-one billion, five hundred thirty-five million, four hundred thirty-three thousand, five hundred sixteen".