51550872576 has 132 divisors (see below), whose sum is σ = 159835295088. Its totient is φ = 14728777728.

The previous prime is 51550872553. The next prime is 51550872683. The reversal of 51550872576 is 67527805515.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20706 + ... + 321761.

Almost surely, 2^51550872576 is an apocalyptic number.

51550872576 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51550872576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79917647544).

51550872576 is an abundant number, since it is smaller than the sum of its proper divisors (108284422512).

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

51550872576 is a wasteful number, since it uses less digits than its factorization.

51550872576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342504 (or 342479 counting only the distinct ones).

The product of its (nonzero) digits is 2940000, while the sum is 51.

The spelling of 51550872576 in words is "fifty-one billion, five hundred fifty million, eight hundred seventy-two thousand, five hundred seventy-six".