8131983555 has 32 divisors (see below), whose sum is σ = 13229146944. Its totient is φ = 4264759296.

The previous prime is 8131983553. The next prime is 8131983557. The reversal of 8131983555 is 5553891318.

It is an interprime number because it is at equal distance from previous prime (8131983553) and next prime (8131983557).

It is not a de Polignac number, because 8131983555 - 2¹ = 8131983553 is a prime.

It is a super-2 number, since 2×8131983555² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8131983553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 357997 + ... + 380033.

It is an arithmetic number, because the mean of its divisors is an integer number (413410842).

Almost surely, 2^8131983555 is an apocalyptic number.

8131983555 is a deficient number, since it is larger than the sum of its proper divisors (5097163389).

8131983555 is a wasteful number, since it uses less digits than its factorization.

8131983555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22455.

The product of its digits is 648000, while the sum is 48.

The square root of 8131983555 is about 90177.5113595402. The cubic root of 8131983555 is about 2010.9386930085.

The spelling of 8131983555 in words is "eight billion, one hundred thirty-one million, nine hundred eighty-three thousand, five hundred fifty-five".