51655798376 has 64 divisors (see below), whose sum is σ = 120884762880. Its totient is φ = 20147420160.

The previous prime is 51655798343. The next prime is 51655798379. The reversal of 51655798376 is 67389755615.

51655798376 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (51655798379) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 448001 + ... + 551376.

It is an arithmetic number, because the mean of its divisors is an integer number (1888824420).

Almost surely, 2^51655798376 is an apocalyptic number.

51655798376 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

51655798376 is an abundant number, since it is smaller than the sum of its proper divisors (69228964504).

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

51655798376 is a wasteful number, since it uses less digits than its factorization.

51655798376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 999474 (or 999470 counting only the distinct ones).

The product of its digits is 47628000, while the sum is 62.

The spelling of 51655798376 in words is "fifty-one billion, six hundred fifty-five million, seven hundred ninety-eight thousand, three hundred seventy-six".