5471055981 has 20 divisors (see below), whose sum is σ = 8183901792. Its totient is φ = 3642421608.

The previous prime is 5471055979. The next prime is 5471056007. The reversal of 5471055981 is 1895501745.

5471055981 is a `hidden beast` number, since 5 + 4 + 7 + 10 + 559 + 81 = 666.

It is not a de Polignac number, because 5471055981 - 2¹ = 5471055979 is a prime.

It is a super-2 number, since 2×5471055981² = 59864907094471744722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5471035981) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 14730 + ... + 105636.

Almost surely, 2^5471055981 is an apocalyptic number.

It is an amenable number.

5471055981 is a deficient number, since it is larger than the sum of its proper divisors (2712845811).

5471055981 is an equidigital number, since it uses as much as digits as its factorization.

5471055981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91662 (or 91653 counting only the distinct ones).

The product of its (nonzero) digits is 252000, while the sum is 45.

The square root of 5471055981 is about 73966.5869227451. The cubic root of 5471055981 is about 1762.0722815436.

The spelling of 5471055981 in words is "five billion, four hundred seventy-one million, fifty-five thousand, nine hundred eighty-one".