51835593169 has 2 divisors, whose sum is σ = 51835593170. Its totient is φ = 51835593168.

The previous prime is 51835593137. The next prime is 51835593191. The reversal of 51835593169 is 96139553815.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27190361025 + 24645232144 = 164895^2 + 156988^2 .

It is a cyclic number.

It is not a de Polignac number, because 51835593169 - 2⁵ = 51835593137 is a prime.

It is a super-2 number, since 2×51835593169² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (51835593269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25917796584 + 25917796585.

It is an arithmetic number, because the mean of its divisors is an integer number (25917796585).

Almost surely, 2^51835593169 is an apocalyptic number.

It is an amenable number.

51835593169 is a deficient number, since it is larger than the sum of its proper divisors (1).

51835593169 is an equidigital number, since it uses as much as digits as its factorization.

51835593169 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4374000, while the sum is 55.

It can be divided in two parts, 518355 and 93169, that added together give a square (611524 = 782²).

The spelling of 51835593169 in words is "fifty-one billion, eight hundred thirty-five million, five hundred ninety-three thousand, one hundred sixty-nine".