51392238983 has 4 divisors (see below), whose sum is σ = 51658520208. Its totient is φ = 51125957760.

The previous prime is 51392238967. The next prime is 51392239001. The reversal of 51392238983 is 38983229315.

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 51392238983 - 2⁴ = 51392238967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51392238913) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 133140323 + ... + 133140708.

It is an arithmetic number, because the mean of its divisors is an integer number (12914630052).

Almost surely, 2^51392238983 is an apocalyptic number.

51392238983 is a deficient number, since it is larger than the sum of its proper divisors (266281225).

51392238983 is a wasteful number, since it uses less digits than its factorization.

51392238983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266281224.

The product of its digits is 2799360, while the sum is 53.

The spelling of 51392238983 in words is "fifty-one billion, three hundred ninety-two million, two hundred thirty-eight thousand, nine hundred eighty-three".