51050115503 has 2 divisors, whose sum is σ = 51050115504. Its totient is φ = 51050115502.

The previous prime is 51050115491. The next prime is 51050115511. The reversal of 51050115503 is 30551105015.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51050115503 - 2²⁶ = 50983006639 is a prime.

It is a super-2 number, since 2×51050115503² (a number of 22 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51050115533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25525057751 + 25525057752.

It is an arithmetic number, because the mean of its divisors is an integer number (25525057752).

Almost surely, 2^51050115503 is an apocalyptic number.

51050115503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51050115503 is an equidigital number, since it uses as much as digits as its factorization.

51050115503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1875, while the sum is 26.

The spelling of 51050115503 in words is "fifty-one billion, fifty million, one hundred fifteen thousand, five hundred three".