5218536997 has 2 divisors, whose sum is σ = 5218536998. Its totient is φ = 5218536996.

The previous prime is 5218536859. The next prime is 5218537013. The reversal of 5218536997 is 7996358125.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5003298756 + 215238241 = 70734^2 + 14671^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5218536997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5218576997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2609268498 + 2609268499.

It is an arithmetic number, because the mean of its divisors is an integer number (2609268499).

Almost surely, 2^5218536997 is an apocalyptic number.

It is an amenable number.

5218536997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5218536997 is an equidigital number, since it uses as much as digits as its factorization.

5218536997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4082400, while the sum is 55.

The square root of 5218536997 is about 72239.4421144017. The cubic root of 5218536997 is about 1734.5344195022.

The spelling of 5218536997 in words is "five billion, two hundred eighteen million, five hundred thirty-six thousand, nine hundred ninety-seven".