2215265320 has 64 divisors (see below), whose sum is σ = 5105255040. Its totient is φ = 864864000.

The previous prime is 2215265243. The next prime is 2215265321. The reversal of 2215265320 is 235625122.

It is not an unprimeable number, because it can be changed into a prime (2215265321) 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, 282979 + ... + 290701.

It is an arithmetic number, because the mean of its divisors is an integer number (79769610).

Almost surely, 2^2215265320 is an apocalyptic number.

2215265320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2215265320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2552627520).

2215265320 is an abundant number, since it is smaller than the sum of its proper divisors (2889989720).

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

2215265320 is a wasteful number, since it uses less digits than its factorization.

2215265320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7906 (or 7902 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 28.

The square root of 2215265320 is about 47066.6051463243. The cubic root of 2215265320 is about 1303.5926892907.

The spelling of 2215265320 in words is "two billion, two hundred fifteen million, two hundred sixty-five thousand, three hundred twenty".