5555544520 has 48 divisors (see below), whose sum is σ = 13192528860. Its totient is φ = 2105253504.

The previous prime is 5555544481. The next prime is 5555544521. The reversal of 5555544520 is 254455555.

It can be written as a sum of positive squares in 2 ways, for example, as 5251321156 + 304223364 = 72466^2 + 17442^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (5555544521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177927 + ... + 206806.

Almost surely, 2^5555544520 is an apocalyptic number.

It is an amenable number.

5555544520 is an abundant number, since it is smaller than the sum of its proper divisors (7636984340).

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

5555544520 is a wasteful number, since it uses less digits than its factorization.

5555544520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384782 (or 384759 counting only the distinct ones).

The product of its (nonzero) digits is 500000, while the sum is 40.

The square root of 5555544520 is about 74535.5252211991. The cubic root of 5555544520 is about 1771.0964426008.

The spelling of 5555544520 in words is "five billion, five hundred fifty-five million, five hundred forty-four thousand, five hundred twenty".