2516778 has 64 divisors (see below), whose sum is σ = 6451200. Its totient is φ = 719280.

The previous prime is 2516771. The next prime is 2516779. The reversal of 2516778 is 8776152.

2516778 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 (2516771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11175 + ... + 11397.

It is an arithmetic number, because the mean of its divisors is an integer number (100800).

2^2516778 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2516778, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3225600).

2516778 is an abundant number, since it is smaller than the sum of its proper divisors (3934422).

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

2516778 is a wasteful number, since it uses less digits than its factorization.

2516778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 258 counting only the distinct ones).

The product of its digits is 23520, while the sum is 36.

The square root of 2516778 is about 1586.4356274365. The cubic root of 2516778 is about 136.0238207986.

The spelling of 2516778 in words is "two million, five hundred sixteen thousand, seven hundred seventy-eight".