51277055752 has 64 divisors (see below), whose sum is σ = 109251576000. Its totient is φ = 22366865664.

The previous prime is 51277055741. The next prime is 51277055827. The reversal of 51277055752 is 25755077215.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 796978 + ... + 858910.

It is an arithmetic number, because the mean of its divisors is an integer number (1707055875).

Almost surely, 2^51277055752 is an apocalyptic number.

51277055752 is a gapful number since it is divisible by the number (52) 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 51277055752, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (54625788000).

51277055752 is an abundant number, since it is smaller than the sum of its proper divisors (57974520248).

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

51277055752 is a wasteful number, since it uses less digits than its factorization.

51277055752 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62390 (or 62386 counting only the distinct ones).

The product of its (nonzero) digits is 857500, while the sum is 46.

The spelling of 51277055752 in words is "fifty-one billion, two hundred seventy-seven million, fifty-five thousand, seven hundred fifty-two".