5558139408 has 160 divisors (see below), whose sum is σ = 15311587456. Its totient is φ = 1734856704.

The previous prime is 5558139403. The next prime is 5558139467. The reversal of 5558139408 is 8049318555.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (5558139403) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5574366 + ... + 5575362.

Almost surely, 2^5558139408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5558139408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7655793728).

5558139408 is an abundant number, since it is smaller than the sum of its proper divisors (9753448048).

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

5558139408 is a wasteful number, since it uses less digits than its factorization.

5558139408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1161 (or 1155 counting only the distinct ones).

The product of its (nonzero) digits is 864000, while the sum is 48.

The square root of 5558139408 is about 74552.9302442231. The cubic root of 5558139408 is about 1771.3721480418.

The spelling of 5558139408 in words is "five billion, five hundred fifty-eight million, one hundred thirty-nine thousand, four hundred eight".