51956572160 has 112 divisors (see below), whose sum is σ = 128061848016. Its totient is φ = 20220346368.

The previous prime is 51956572139. The next prime is 51956572183. The reversal of 51956572160 is 6127565915.

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 7 ways as a sum of consecutive naturals, for example, 1498379 + ... + 1532661.

Almost surely, 2^51956572160 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 51956572160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64030924008).

51956572160 is an abundant number, since it is smaller than the sum of its proper divisors (76105275856).

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

51956572160 is an equidigital number, since it uses as much as digits as its factorization.

51956572160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34351 (or 34327 counting only the distinct ones).

The product of its (nonzero) digits is 567000, while the sum is 47.

The spelling of 51956572160 in words is "fifty-one billion, nine hundred fifty-six million, five hundred seventy-two thousand, one hundred sixty".