2516247840 has 192 divisors, whose sum is σ = 8348126976. Its totient is φ = 635830272.

The previous prime is 2516247827. The next prime is 2516247841. The reversal of 2516247840 is 487426152.

2516247840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (2516247841) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1246512 + ... + 1248528.

It is an arithmetic number, because the mean of its divisors is an integer number (43479828).

Almost surely, 2^2516247840 is an apocalyptic number.

2516247840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2516247840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4174063488).

2516247840 is an abundant number, since it is smaller than the sum of its proper divisors (5831879136).

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

2516247840 is a wasteful number, since it uses less digits than its factorization.

2516247840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171 (or 2163 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 39.

The square root of 2516247840 is about 50162.2152620875. The cubic root of 2516247840 is about 1360.1426897576.

The spelling of 2516247840 in words is "two billion, five hundred sixteen million, two hundred forty-seven thousand, eight hundred forty".