5549561544 has 16 divisors (see below), whose sum is σ = 13873903920. Its totient is φ = 1849853840.

The previous prime is 5549561491. The next prime is 5549561579. The reversal of 5549561544 is 4451659455.

It is a junction number, because it is equal to n+sod(n) for n = 5549561493 and 5549561502.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115615842 + ... + 115615889.

It is an arithmetic number, because the mean of its divisors is an integer number (867118995).

Almost surely, 2^5549561544 is an apocalyptic number.

It is an amenable number.

5549561544 is an abundant number, since it is smaller than the sum of its proper divisors (8324342376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5549561544 is a wasteful number, since it uses less digits than its factorization.

5549561544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231231740 (or 231231736 counting only the distinct ones).

The product of its digits is 2160000, while the sum is 48.

The square root of 5549561544 is about 74495.3793466414. The cubic root of 5549561544 is about 1770.4604273163.

The spelling of 5549561544 in words is "five billion, five hundred forty-nine million, five hundred sixty-one thousand, five hundred forty-four".