2215405265 has 8 divisors (see below), whose sum is σ = 2750158440. Its totient is φ = 1711209472.

The previous prime is 2215405249. The next prime is 2215405277. The reversal of 2215405265 is 5625045122.

It can be written as a sum of positive squares in 4 ways, for example, as 433805584 + 1781599681 = 20828^2 + 42209^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2215405265 - 2⁴ = 2215405249 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7639184 + ... + 7639473.

It is an arithmetic number, because the mean of its divisors is an integer number (343769805).

Almost surely, 2^2215405265 is an apocalyptic number.

It is an amenable number.

2215405265 is a deficient number, since it is larger than the sum of its proper divisors (534753175).

2215405265 is a wasteful number, since it uses less digits than its factorization.

2215405265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15278691.

The product of its (nonzero) digits is 24000, while the sum is 32.

The square root of 2215405265 is about 47068.0917926359. The cubic root of 2215405265 is about 1303.6201393416.

The spelling of 2215405265 in words is "two billion, two hundred fifteen million, four hundred five thousand, two hundred sixty-five".