51086123706503 has 2 divisors, whose sum is σ = 51086123706504. Its totient is φ = 51086123706502.

The previous prime is 51086123706439. The next prime is 51086123706533. The reversal of 51086123706503 is 30560732168015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51086123706503 - 2⁶ = 51086123706439 is a prime.

It is a super-2 number, since 2×51086123706503² (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 (51086123706533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25543061853251 + 25543061853252.

It is an arithmetic number, because the mean of its divisors is an integer number (25543061853252).

Almost surely, 2^{51086123706503} is an apocalyptic number.

51086123706503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51086123706503 is an equidigital number, since it uses as much as digits as its factorization.

51086123706503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 907200, while the sum is 47.

The spelling of 51086123706503 in words is "fifty-one trillion, eighty-six billion, one hundred twenty-three million, seven hundred six thousand, five hundred three".