51133254773 has 2 divisors, whose sum is σ = 51133254774. Its totient is φ = 51133254772.

The previous prime is 51133254763. The next prime is 51133254791. The reversal of 51133254773 is 37745233115.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46665936529 + 4467318244 = 216023^2 + 66838^2 .

It is a cyclic number.

It is not a de Polignac number, because 51133254773 - 2¹² = 51133250677 is a prime.

It is a super-2 number, since 2×51133254773² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 51133254773.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51133254713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25566627386 + 25566627387.

It is an arithmetic number, because the mean of its divisors is an integer number (25566627387).

Almost surely, 2^51133254773 is an apocalyptic number.

It is an amenable number.

51133254773 is a deficient number, since it is larger than the sum of its proper divisors (1).

51133254773 is an equidigital number, since it uses as much as digits as its factorization.

51133254773 is an evil number, because the sum of its binary digits is even.

The product of its digits is 264600, while the sum is 41.

Adding to 51133254773 its reverse (37745233115), we get a palindrome (88878487888).

The spelling of 51133254773 in words is "fifty-one billion, one hundred thirty-three million, two hundred fifty-four thousand, seven hundred seventy-three".