5178755520 has 224 divisors, whose sum is σ = 19231660800. Its totient is φ = 1308275712.

The previous prime is 5178755443. The next prime is 5178755531. The reversal of 5178755520 is 255578715.

5178755520 is a `hidden beast` number, since 5 + 1 + 78 + 7 + 55 + 520 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 148387 + ... + 179933.

Almost surely, 2^5178755520 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 5178755520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9615830400).

5178755520 is an abundant number, since it is smaller than the sum of its proper divisors (14052905280).

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

5178755520 is a wasteful number, since it uses less digits than its factorization.

5178755520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31592 (or 31576 counting only the distinct ones).

The product of its (nonzero) digits is 490000, while the sum is 45.

The square root of 5178755520 is about 71963.5707841127. The cubic root of 5178755520 is about 1730.1156571190.

The spelling of 5178755520 in words is "five billion, one hundred seventy-eight million, seven hundred fifty-five thousand, five hundred twenty".