5518326551 has 2 divisors, whose sum is σ = 5518326552. Its totient is φ = 5518326550.

The previous prime is 5518326511. The next prime is 5518326587. The reversal of 5518326551 is 1556238155.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5518326551 - 2²⁶ = 5451217687 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 5518326499 and 5518326508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5518326511) 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, 2759163275 + 2759163276.

It is an arithmetic number, because the mean of its divisors is an integer number (2759163276).

Almost surely, 2^5518326551 is an apocalyptic number.

5518326551 is a deficient number, since it is larger than the sum of its proper divisors (1).

5518326551 is an equidigital number, since it uses as much as digits as its factorization.

5518326551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180000, while the sum is 41.

The square root of 5518326551 is about 74285.4396971573. The cubic root of 5518326551 is about 1767.1325731250.

The spelling of 5518326551 in words is "five billion, five hundred eighteen million, three hundred twenty-six thousand, five hundred fifty-one".