51080037855 has 64 divisors (see below), whose sum is σ = 107257651200. Its totient is φ = 20110792320.

The previous prime is 51080037797. The next prime is 51080037857. The reversal of 51080037855 is 55873008015.

It is a happy number.

It is not a de Polignac number, because 51080037855 - 2⁷ = 51080037727 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51080037857) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1141875 + ... + 1185764.

It is an arithmetic number, because the mean of its divisors is an integer number (1675900800).

Almost surely, 2^51080037855 is an apocalyptic number.

51080037855 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51080037855 is an abundant number, since it is smaller than the sum of its proper divisors (56177613345).

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

51080037855 is a wasteful number, since it uses less digits than its factorization.

51080037855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2327684.

The product of its (nonzero) digits is 168000, while the sum is 42.

The spelling of 51080037855 in words is "fifty-one billion, eighty million, thirty-seven thousand, eight hundred fifty-five".