51053230069 has 2 divisors, whose sum is σ = 51053230070. Its totient is φ = 51053230068.

The previous prime is 51053230049. The next prime is 51053230079. The reversal of 51053230069 is 96003235015.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44737749169 + 6315480900 = 211513^2 + 79470^2 .

It is a cyclic number.

It is not a de Polignac number, because 51053230069 - 2²¹ = 51051132917 is a prime.

It is a super-2 number, since 2×51053230069² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51053230049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25526615034 + 25526615035.

It is an arithmetic number, because the mean of its divisors is an integer number (25526615035).

Almost surely, 2^51053230069 is an apocalyptic number.

It is an amenable number.

51053230069 is a deficient number, since it is larger than the sum of its proper divisors (1).

51053230069 is an equidigital number, since it uses as much as digits as its factorization.

51053230069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24300, while the sum is 34.

The spelling of 51053230069 in words is "fifty-one billion, fifty-three million, two hundred thirty thousand, sixty-nine".