2563716 has 48 divisors (see below), whose sum is σ = 6350400. Its totient is φ = 803712.

The previous prime is 2563711. The next prime is 2563723. The reversal of 2563716 is 6173652.

It is not an unprimeable number, because it can be changed into a prime (2563711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18375 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (132300).

2^2563716 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 2563716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3175200).

2563716 is an abundant number, since it is smaller than the sum of its proper divisors (3786684).

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

2563716 is a wasteful number, since it uses less digits than its factorization.

2563716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228 (or 226 counting only the distinct ones).

The product of its digits is 7560, while the sum is 30.

The square root of 2563716 is about 1601.1608288988. The cubic root of 2563716 is about 136.8642340524.

The spelling of 2563716 in words is "two million, five hundred sixty-three thousand, seven hundred sixteen".