51010605555127 has 4 divisors (see below), whose sum is σ = 51011247333960. Its totient is φ = 51009963776296.

The previous prime is 51010605555067. The next prime is 51010605555163. The reversal of 51010605555127 is 72155550601015.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 51010605555127 - 2¹⁹ = 51010605030839 is a prime.

It is a super-2 number, since 2×51010605555127² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51010605555167) 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, 320770177 + ... + 320929162.

It is an arithmetic number, because the mean of its divisors is an integer number (12752811833490).

Almost surely, 2^{51010605555127} is an apocalyptic number.

51010605555127 is a deficient number, since it is larger than the sum of its proper divisors (641778833).

51010605555127 is an equidigital number, since it uses as much as digits as its factorization.

51010605555127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 641778832.

The product of its (nonzero) digits is 262500, while the sum is 43.

The spelling of 51010605555127 in words is "fifty-one trillion, ten billion, six hundred five million, five hundred fifty-five thousand, one hundred twenty-seven".