51556576352 has 96 divisors (see below), whose sum is σ = 105527772000. Its totient is φ = 24777216000.

The previous prime is 51556576339. The next prime is 51556576369. The reversal of 51556576352 is 25367565515.

It is a self number, because there is not a number n which added to its sum of digits gives 51556576352.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 30344399 + ... + 30346097.

It is an arithmetic number, because the mean of its divisors is an integer number (1099247625).

Almost surely, 2^51556576352 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 51556576352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52763886000).

51556576352 is an abundant number, since it is smaller than the sum of its proper divisors (53971195648).

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

51556576352 is a wasteful number, since it uses less digits than its factorization.

51556576352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080 (or 2072 counting only the distinct ones).

The product of its digits is 4725000, while the sum is 50.

The spelling of 51556576352 in words is "fifty-one billion, five hundred fifty-six million, five hundred seventy-six thousand, three hundred fifty-two".