51131050445001 has 4 divisors (see below), whose sum is σ = 68174733926672. Its totient is φ = 34087366963332.

The previous prime is 51131050444939. The next prime is 51131050445039. The reversal of 51131050445001 is 10054405013115.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 51131050445001 - 2³³ = 51122460510409 is a prime.

It is a super-2 number, since 2×51131050445001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51131050445001.

It is not an unprimeable number, because it can be changed into a prime (51131050443001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8521841740831 + ... + 8521841740836.

It is an arithmetic number, because the mean of its divisors is an integer number (17043683481668).

Almost surely, 2^{51131050445001} is an apocalyptic number.

It is an amenable number.

51131050445001 is a deficient number, since it is larger than the sum of its proper divisors (17043683481671).

51131050445001 is a wasteful number, since it uses less digits than its factorization.

51131050445001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17043683481670.

The product of its (nonzero) digits is 6000, while the sum is 30.

Adding to 51131050445001 its reverse (10054405013115), we get a palindrome (61185455458116).

The spelling of 51131050445001 in words is "fifty-one trillion, one hundred thirty-one billion, fifty million, four hundred forty-five thousand, one".