51135263324571 has 16 divisors (see below), whose sum is σ = 68207132322560. Its totient is φ = 34076786456160.

The previous prime is 51135263324569. The next prime is 51135263324599. The reversal of 51135263324571 is 17542336253115.

It is not a de Polignac number, because 51135263324571 - 2¹ = 51135263324569 is a prime.

It is a super-2 number, since 2×51135263324571² (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 51135263324571.

It is not an unprimeable number, because it can be changed into a prime (51135263325571) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 141431901 + ... + 141792993.

It is an arithmetic number, because the mean of its divisors is an integer number (4262945770160).

Almost surely, 2^{51135263324571} is an apocalyptic number.

51135263324571 is a deficient number, since it is larger than the sum of its proper divisors (17071868997989).

51135263324571 is a wasteful number, since it uses less digits than its factorization.

51135263324571 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379506.

The product of its digits is 2268000, while the sum is 48.

Adding to 51135263324571 its reverse (17542336253115), we get a palindrome (68677599577686).

The spelling of 51135263324571 in words is "fifty-one trillion, one hundred thirty-five billion, two hundred sixty-three million, three hundred twenty-four thousand, five hundred seventy-one".