51087805060 has 12 divisors (see below), whose sum is σ = 107284390668. Its totient is φ = 20435122016.

The previous prime is 51087805049. The next prime is 51087805063. The reversal of 51087805060 is 6050878015.

It can be written as a sum of positive squares in 2 ways, for example, as 18179668224 + 32908136836 = 134832^2 + 181406^2 .

It is not an unprimeable number, because it can be changed into a prime (51087805063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1277195107 + ... + 1277195146.

It is an arithmetic number, because the mean of its divisors is an integer number (8940365889).

Almost surely, 2^51087805060 is an apocalyptic number.

It is an amenable number.

51087805060 is an abundant number, since it is smaller than the sum of its proper divisors (56196585608).

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

51087805060 is a wasteful number, since it uses less digits than its factorization.

51087805060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2554390262 (or 2554390260 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 40.

The spelling of 51087805060 in words is "fifty-one billion, eighty-seven million, eight hundred five thousand, sixty".