2521316 has 24 divisors (see below), whose sum is σ = 5140800. Its totient is φ = 1059552.

The previous prime is 2521307. The next prime is 2521327. The reversal of 2521316 is 6131252.

2521316 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 635 + ... + 2333.

It is an arithmetic number, because the mean of its divisors is an integer number (214200).

2^2521316 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 2521316, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2570400).

2521316 is an abundant number, since it is smaller than the sum of its proper divisors (2619484).

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

2521316 is a wasteful number, since it uses less digits than its factorization.

2521316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1763 (or 1761 counting only the distinct ones).

The product of its digits is 360, while the sum is 20.

The square root of 2521316 is about 1587.8652335762. The cubic root of 2521316 is about 136.1055265174.

Adding to 2521316 its reverse (6131252), we get a palindrome (8652568).

It can be divided in two parts, 25 and 21316, that multiplied together give a square (532900 = 730²).

The spelling of 2521316 in words is "two million, five hundred twenty-one thousand, three hundred sixteen".