5217511687 has 2 divisors, whose sum is σ = 5217511688. Its totient is φ = 5217511686.

The previous prime is 5217511657. The next prime is 5217511697. The reversal of 5217511687 is 7861157125.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5217511687 - 2²⁷ = 5083293959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5217511657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2608755843 + 2608755844.

It is an arithmetic number, because the mean of its divisors is an integer number (2608755844).

Almost surely, 2^5217511687 is an apocalyptic number.

5217511687 is a deficient number, since it is larger than the sum of its proper divisors (1).

5217511687 is an equidigital number, since it uses as much as digits as its factorization.

5217511687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 117600, while the sum is 43.

The square root of 5217511687 is about 72232.3451578308. The cubic root of 5217511687 is about 1734.4208147395.

The spelling of 5217511687 in words is "five billion, two hundred seventeen million, five hundred eleven thousand, six hundred eighty-seven".