5181553231 has 2 divisors, whose sum is σ = 5181553232. Its totient is φ = 5181553230.

The previous prime is 5181553219. The next prime is 5181553243. The reversal of 5181553231 is 1323551815.

It is a balanced prime because it is at equal distance from previous prime (5181553219) and next prime (5181553243).

It is a cyclic number.

It is not a de Polignac number, because 5181553231 - 2²⁵ = 5147998799 is a prime.

It is a super-2 number, since 2×5181553231² = 53696987771373078722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5181553031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2590776615 + 2590776616.

It is an arithmetic number, because the mean of its divisors is an integer number (2590776616).

Almost surely, 2^5181553231 is an apocalyptic number.

5181553231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5181553231 is an equidigital number, since it uses as much as digits as its factorization.

5181553231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18000, while the sum is 34.

The square root of 5181553231 is about 71983.0065432113. The cubic root of 5181553231 is about 1730.4271535917.

The spelling of 5181553231 in words is "five billion, one hundred eighty-one million, five hundred fifty-three thousand, two hundred thirty-one".