51551131413 has 16 divisors (see below), whose sum is σ = 70958514176. Its totient is φ = 33255785520.

The previous prime is 51551131399. The next prime is 51551131453. The reversal of 51551131413 is 31413115515.

It is not a de Polignac number, because 51551131413 - 2¹⁷ = 51551000341 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 (51551131453) 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 15 ways as a sum of consecutive naturals, for example, 1512720 + ... + 1546422.

It is an arithmetic number, because the mean of its divisors is an integer number (4434907136).

Almost surely, 2^51551131413 is an apocalyptic number.

It is an amenable number.

51551131413 is a deficient number, since it is larger than the sum of its proper divisors (19407382763).

51551131413 is a wasteful number, since it uses less digits than its factorization.

51551131413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50184.

The product of its digits is 4500, while the sum is 30.

Adding to 51551131413 its reverse (31413115515), we get a palindrome (82964246928).

The spelling of 51551131413 in words is "fifty-one billion, five hundred fifty-one million, one hundred thirty-one thousand, four hundred thirteen".