51553866084 has 72 divisors (see below), whose sum is σ = 143713926720. Its totient is φ = 14331570624.

The previous prime is 51553866083. The next prime is 51553866107. The reversal of 51553866084 is 48066835515.

It is a happy number.

It is a super-2 number, since 2×51553866084² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51553866083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1163064 + ... + 1206575.

It is an arithmetic number, because the mean of its divisors is an integer number (1996026760).

Almost surely, 2^51553866084 is an apocalyptic number.

It is an amenable number.

51553866084 is an abundant number, since it is smaller than the sum of its proper divisors (92160060636).

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

51553866084 is a wasteful number, since it uses less digits than its factorization.

51553866084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2369697 (or 2369688 counting only the distinct ones).

The product of its (nonzero) digits is 3456000, while the sum is 51.

The spelling of 51553866084 in words is "fifty-one billion, five hundred fifty-three million, eight hundred sixty-six thousand, eighty-four".