2621216252 has 48 divisors (see below), whose sum is σ = 4884909120. Its totient is φ = 1228136448.

The previous prime is 2621216219. The next prime is 2621216261. The reversal of 2621216252 is 2526121262.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 923828 + ... + 926660.

It is an arithmetic number, because the mean of its divisors is an integer number (101768940).

Almost surely, 2^2621216252 is an apocalyptic number.

It is an amenable number.

2621216252 is a deficient number, since it is larger than the sum of its proper divisors (2263692868).

2621216252 is a wasteful number, since it uses less digits than its factorization.

2621216252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3062 (or 3060 counting only the distinct ones).

The product of its digits is 5760, while the sum is 29.

The square root of 2621216252 is about 51197.8149143106. The cubic root of 2621216252 is about 1378.7989711379.

The spelling of 2621216252 in words is "two billion, six hundred twenty-one million, two hundred sixteen thousand, two hundred fifty-two".