51422888558 has 4 divisors (see below), whose sum is σ = 77134332840. Its totient is φ = 25711444278.

The previous prime is 51422888557. The next prime is 51422888591. The reversal of 51422888558 is 85588822415.

It is a happy number.

51422888558 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51422888557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12855722138 + ... + 12855722141.

It is an arithmetic number, because the mean of its divisors is an integer number (19283583210).

Almost surely, 2^51422888558 is an apocalyptic number.

51422888558 is a deficient number, since it is larger than the sum of its proper divisors (25711444282).

51422888558 is a wasteful number, since it uses less digits than its factorization.

51422888558 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25711444281.

The product of its digits is 8192000, while the sum is 56.

The spelling of 51422888558 in words is "fifty-one billion, four hundred twenty-two million, eight hundred eighty-eight thousand, five hundred fifty-eight".