51331053118 has 4 divisors (see below), whose sum is σ = 76996579680. Its totient is φ = 25665526558.

The previous prime is 51331053089. The next prime is 51331053127. The reversal of 51331053118 is 81135013315.

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

It is a self number, because there is not a number n which added to its sum of digits gives 51331053118.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12832763278 + ... + 12832763281.

It is an arithmetic number, because the mean of its divisors is an integer number (19249144920).

Almost surely, 2^51331053118 is an apocalyptic number.

51331053118 is a deficient number, since it is larger than the sum of its proper divisors (25665526562).

51331053118 is a wasteful number, since it uses less digits than its factorization.

51331053118 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25665526561.

The product of its (nonzero) digits is 5400, while the sum is 31.

The spelling of 51331053118 in words is "fifty-one billion, three hundred thirty-one million, fifty-three thousand, one hundred eighteen".