51979984552 has 16 divisors (see below), whose sum is σ = 98696174400. Its totient is φ = 25661004720.

The previous prime is 51979984489. The next prime is 51979984579. The reversal of 51979984552 is 25548997915.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41122774 + ... + 41124037.

It is an arithmetic number, because the mean of its divisors is an integer number (6168510900).

Almost surely, 2^51979984552 is an apocalyptic number.

It is an amenable number.

51979984552 is a deficient number, since it is larger than the sum of its proper divisors (46716189848).

51979984552 is a wasteful number, since it uses less digits than its factorization.

51979984552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82246896 (or 82246892 counting only the distinct ones).

The product of its digits is 40824000, while the sum is 64.

The spelling of 51979984552 in words is "fifty-one billion, nine hundred seventy-nine million, nine hundred eighty-four thousand, five hundred fifty-two".