5605510981 has 16 divisors (see below), whose sum is σ = 6568998016. Its totient is φ = 4684179456.

The previous prime is 5605510973. The next prime is 5605511057. The reversal of 5605510981 is 1890155065.

It is a cyclic number.

It is not a de Polignac number, because 5605510981 - 2³ = 5605510973 is a prime.

It is a super-2 number, since 2×5605510981² = 62843506716223164722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5605510901) 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 in 15 ways as a sum of consecutive naturals, for example, 16116 + ... + 107101.

It is an arithmetic number, because the mean of its divisors is an integer number (410562376).

Almost surely, 2^5605510981 is an apocalyptic number.

It is an amenable number.

5605510981 is a deficient number, since it is larger than the sum of its proper divisors (963487035).

5605510981 is a wasteful number, since it uses less digits than its factorization.

5605510981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123388.

The product of its (nonzero) digits is 54000, while the sum is 40.

The square root of 5605510981 is about 74869.9604714735. The cubic root of 5605510981 is about 1776.3903389393.

The spelling of 5605510981 in words is "five billion, six hundred five million, five hundred ten thousand, nine hundred eighty-one".