5603869881 has 9 divisors (see below), whose sum is σ = 8094803119. Its totient is φ = 3735763536.

The previous prime is 5603869879. The next prime is 5603869963. The reversal of 5603869881 is 1889683065.

The square root of 5603869881 is 74859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 4065975225 + 1537894656 = 63765^2 + 39216^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 5603869881 - 2¹ = 5603869879 is a prime.

It is a super-2 number, since 2×5603869881² = 62806715286357908322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5603869811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 212101 + ... + 237053.

Almost surely, 2^5603869881 is an apocalyptic number.

5603869881 is the 74859-th square number.

5603869881 is the 37430-th centered octagonal number.

It is an amenable number.

5603869881 is a deficient number, since it is larger than the sum of its proper divisors (2490933238).

5603869881 is an frugal number, since it uses more digits than its factorization.

5603869881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49912 (or 24956 counting only the distinct ones).

The product of its (nonzero) digits is 2488320, while the sum is 54.

The cubic root of 5603869881 is about 1776.2169667743.

The spelling of 5603869881 in words is "five billion, six hundred three million, eight hundred sixty-nine thousand, eight hundred eighty-one".