5505768138 has 64 divisors (see below), whose sum is σ = 12570066432. Its totient is φ = 1592663040.

The previous prime is 5505768127. The next prime is 5505768143. The reversal of 5505768138 is 8318675055.

It is a super-3 number, since 3×5505768138³ (a number of 30 digits) contains 333 as substring.

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, 1630620 + ... + 1633992.

It is an arithmetic number, because the mean of its divisors is an integer number (196407288).

Almost surely, 2^5505768138 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5505768138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6285033216).

5505768138 is an abundant number, since it is smaller than the sum of its proper divisors (7064298294).

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

5505768138 is a wasteful number, since it uses less digits than its factorization.

5505768138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4639.

The product of its (nonzero) digits is 1008000, while the sum is 48.

The square root of 5505768138 is about 74200.8634585879. The cubic root of 5505768138 is about 1765.7910289285.

The spelling of 5505768138 in words is "five billion, five hundred five million, seven hundred sixty-eight thousand, one hundred thirty-eight".