5781515520 has 432 divisors, whose sum is σ = 21217504896. Its totient is φ = 1338163200.

The previous prime is 5781515513. The next prime is 5781515521. The reversal of 5781515520 is 255151875.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5781515521) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10686450 + ... + 10686990.

Almost surely, 2^5781515520 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 5781515520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10608752448).

5781515520 is an abundant number, since it is smaller than the sum of its proper divisors (15435989376).

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

5781515520 is a wasteful number, since it uses less digits than its factorization.

5781515520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 610 (or 585 counting only the distinct ones).

The product of its (nonzero) digits is 70000, while the sum is 39.

The square root of 5781515520 is about 76036.2776574445. The cubic root of 5781515520 is about 1794.7910641011.

The spelling of 5781515520 in words is "five billion, seven hundred eighty-one million, five hundred fifteen thousand, five hundred twenty".