5499479981 has 2 divisors, whose sum is σ = 5499479982. Its totient is φ = 5499479980.

The previous prime is 5499479971. The next prime is 5499480097. The reversal of 5499479981 is 1899749945.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5496887881 + 2592100 = 74141^2 + 1610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5499479981 is a prime.

It is a super-2 number, since 2×5499479981² = 60488560122839520722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5499479971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749739990 + 2749739991.

It is an arithmetic number, because the mean of its divisors is an integer number (2749739991).

Almost surely, 2^5499479981 is an apocalyptic number.

It is an amenable number.

5499479981 is a deficient number, since it is larger than the sum of its proper divisors (1).

5499479981 is an equidigital number, since it uses as much as digits as its factorization.

5499479981 is an evil number, because the sum of its binary digits is even.

The product of its digits is 29393280, while the sum is 65.

The square root of 5499479981 is about 74158.4788206986. The cubic root of 5499479981 is about 1765.1185341457.

The spelling of 5499479981 in words is "five billion, four hundred ninety-nine million, four hundred seventy-nine thousand, nine hundred eighty-one".