5555399928 has 128 divisors (see below), whose sum is σ = 15467665920. Its totient is φ = 1651622400.

The previous prime is 5555399867. The next prime is 5555399933. The reversal of 5555399928 is 8299935555.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1741551 + ... + 1744737.

It is an arithmetic number, because the mean of its divisors is an integer number (120841140).

Almost surely, 2^5555399928 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 5555399928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7733832960).

5555399928 is an abundant number, since it is smaller than the sum of its proper divisors (9912265992).

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

5555399928 is a wasteful number, since it uses less digits than its factorization.

5555399928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3397 (or 3393 counting only the distinct ones).

The product of its digits is 21870000, while the sum is 60.

The square root of 5555399928 is about 74534.5552613015. Note that the first 3 decimals coincide. The cubic root of 5555399928 is about 1771.0810772544.

The spelling of 5555399928 in words is "five billion, five hundred fifty-five million, three hundred ninety-nine thousand, nine hundred twenty-eight".