51388101283 has 4 divisors (see below), whose sum is σ = 51389437960. Its totient is φ = 51386764608.

The previous prime is 51388101241. The next prime is 51388101293. The reversal of 51388101283 is 38210188315.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51388101283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (51388101293) 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, 608910 + ... + 688147.

It is an arithmetic number, because the mean of its divisors is an integer number (12847359490).

Almost surely, 2^51388101283 is an apocalyptic number.

51388101283 is a deficient number, since it is larger than the sum of its proper divisors (1336677).

51388101283 is a wasteful number, since it uses less digits than its factorization.

51388101283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1336676.

The product of its (nonzero) digits is 46080, while the sum is 40.

Adding to 51388101283 its reverse (38210188315), we get a palindrome (89598289598).

The spelling of 51388101283 in words is "fifty-one billion, three hundred eighty-eight million, one hundred one thousand, two hundred eighty-three".