51700755503 has 2 divisors, whose sum is σ = 51700755504. Its totient is φ = 51700755502.

The previous prime is 51700755461. The next prime is 51700755541. The reversal of 51700755503 is 30555700715.

It is a happy number.

51700755503 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (51700755541) can be obtained adding 51700755503 to its sum of digits (38).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 51700755503 - 2¹⁶ = 51700689967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51700755563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25850377751 + 25850377752.

It is an arithmetic number, because the mean of its divisors is an integer number (25850377752).

Almost surely, 2^51700755503 is an apocalyptic number.

51700755503 is a deficient number, since it is larger than the sum of its proper divisors (1).

51700755503 is an equidigital number, since it uses as much as digits as its factorization.

51700755503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 91875, while the sum is 38.

The spelling of 51700755503 in words is "fifty-one billion, seven hundred million, seven hundred fifty-five thousand, five hundred three".