5517135731 has 2 divisors, whose sum is σ = 5517135732. Its totient is φ = 5517135730.

The previous prime is 5517135713. The next prime is 5517135761. The reversal of 5517135731 is 1375317155.

Together with previous prime (5517135713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5517135731 is a prime.

It is a super-2 number, since 2×5517135731² = 60877573348553808722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5517135761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2758567865 + 2758567866.

It is an arithmetic number, because the mean of its divisors is an integer number (2758567866).

Almost surely, 2^5517135731 is an apocalyptic number.

5517135731 is a deficient number, since it is larger than the sum of its proper divisors (1).

5517135731 is an equidigital number, since it uses as much as digits as its factorization.

5517135731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 55125, while the sum is 38.

The square root of 5517135731 is about 74277.4241004627. The cubic root of 5517135731 is about 1767.0054519662.

The spelling of 5517135731 in words is "five billion, five hundred seventeen million, one hundred thirty-five thousand, seven hundred thirty-one".