51530100436939 has 2 divisors, whose sum is σ = 51530100436940. Its totient is φ = 51530100436938.

The previous prime is 51530100436907. The next prime is 51530100436949. The reversal of 51530100436939 is 93963400103515.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51530100436939 - 2⁵ = 51530100436907 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 51530100436892 and 51530100436901.

It is not a weakly prime, because it can be changed into another prime (51530100436949) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25765050218469 + 25765050218470.

It is an arithmetic number, because the mean of its divisors is an integer number (25765050218470).

Almost surely, 2^{51530100436939} is an apocalyptic number.

51530100436939 is a deficient number, since it is larger than the sum of its proper divisors (1).

51530100436939 is an equidigital number, since it uses as much as digits as its factorization.

51530100436939 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1312200, while the sum is 49.

The spelling of 51530100436939 in words is "fifty-one trillion, five hundred thirty billion, one hundred million, four hundred thirty-six thousand, nine hundred thirty-nine".