5505775578 has 80 divisors (see below), whose sum is σ = 13016541120. Its totient is φ = 1734623424.

The previous prime is 5505775577. The next prime is 5505775579. The reversal of 5505775578 is 8755775055.

It is an interprime number because it is at equal distance from previous prime (5505775577) and next prime (5505775579).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (5505775577) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1497150 + ... + 1500822.

It is an arithmetic number, because the mean of its divisors is an integer number (162706764).

Almost surely, 2^5505775578 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5505775578, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6508270560).

5505775578 is an abundant number, since it is smaller than the sum of its proper divisors (7510765542).

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

5505775578 is a wasteful number, since it uses less digits than its factorization.

5505775578 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4193 (or 4184 counting only the distinct ones).

The product of its (nonzero) digits is 8575000, while the sum is 54.

The square root of 5505775578 is about 74200.9135927584. The cubic root of 5505775578 is about 1765.7918243053.

The spelling of 5505775578 in words is "five billion, five hundred five million, seven hundred seventy-five thousand, five hundred seventy-eight".