51525251414069 has 2 divisors, whose sum is σ = 51525251414070. Its totient is φ = 51525251414068.

The previous prime is 51525251413997. The next prime is 51525251414123. The reversal of 51525251414069 is 96041415252515.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42016816633444 + 9508434780625 = 6482038^2 + 3083575^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51525251414069 is a prime.

It is a super-2 number, since 2×51525251414069² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51525251414569) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25762625707034 + 25762625707035.

It is an arithmetic number, because the mean of its divisors is an integer number (25762625707035).

Almost surely, 2^{51525251414069} is an apocalyptic number.

It is an amenable number.

51525251414069 is a deficient number, since it is larger than the sum of its proper divisors (1).

51525251414069 is an equidigital number, since it uses as much as digits as its factorization.

51525251414069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160000, while the sum is 50.

The spelling of 51525251414069 in words is "fifty-one trillion, five hundred twenty-five billion, two hundred fifty-one million, four hundred fourteen thousand, sixty-nine".