2521616326 has 16 divisors (see below), whose sum is σ = 3832718400. Its totient is φ = 1244063808.

The previous prime is 2521616309. The next prime is 2521616327. The reversal of 2521616326 is 6236161252.

It is a junction number, because it is equal to n+sod(n) for n = 2521616291 and 2521616300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2521616327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 307690 + ... + 315778.

It is an arithmetic number, because the mean of its divisors is an integer number (239544900).

Almost surely, 2^2521616326 is an apocalyptic number.

2521616326 is a deficient number, since it is larger than the sum of its proper divisors (1311102074).

2521616326 is a wasteful number, since it uses less digits than its factorization.

2521616326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10143.

The product of its digits is 25920, while the sum is 34.

The square root of 2521616326 is about 50215.6980037119. The cubic root of 2521616326 is about 1361.1093036282.

Adding to 2521616326 its reverse (6236161252), we get a palindrome (8757777578).

The spelling of 2521616326 in words is "two billion, five hundred twenty-one million, six hundred sixteen thousand, three hundred twenty-six".