5115552240 has 80 divisors (see below), whose sum is σ = 15890875776. Its totient is φ = 1361337600.

The previous prime is 5115552223. The next prime is 5115552251. The reversal of 5115552240 is 422555115.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 5115552198 and 5115552207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96135 + ... + 139545.

Almost surely, 2^5115552240 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 5115552240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7945437888).

5115552240 is an abundant number, since it is smaller than the sum of its proper divisors (10775323536).

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

5115552240 is a wasteful number, since it uses less digits than its factorization.

5115552240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43918 (or 43912 counting only the distinct ones).

The product of its (nonzero) digits is 10000, while the sum is 30.

The square root of 5115552240 is about 71523.0888594725. The cubic root of 5115552240 is about 1723.0485236644.

The spelling of 5115552240 in words is "five billion, one hundred fifteen million, five hundred fifty-two thousand, two hundred forty".