2521326616 has 16 divisors (see below), whose sum is σ = 4729508640. Its totient is φ = 1260124320.

The previous prime is 2521326583. The next prime is 2521326623. The reversal of 2521326616 is 6166231252.

It is a super-2 number, since 2×2521326616² = 12714175809100022912, which contains 22 as substring.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 47136 + ... + 85231.

It is an arithmetic number, because the mean of its divisors is an integer number (295594290).

Almost surely, 2^2521326616 is an apocalyptic number.

It is an amenable number.

2521326616 is a deficient number, since it is larger than the sum of its proper divisors (2208182024).

2521326616 is a wasteful number, since it uses less digits than its factorization.

2521326616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134754 (or 134750 counting only the distinct ones).

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

The square root of 2521326616 is about 50212.8132651418. The cubic root of 2521326616 is about 1361.0571754126.

Adding to 2521326616 its reverse (6166231252), we get a palindrome (8687557868).

The spelling of 2521326616 in words is "two billion, five hundred twenty-one million, three hundred twenty-six thousand, six hundred sixteen".