2665215 has 24 divisors (see below), whose sum is σ = 5280288. Its totient is φ = 1218240.

The previous prime is 2665199. The next prime is 2665231. The reversal of 2665215 is 5125662.

2665215 is a `hidden beast` number, since 2 + 6 + 652 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (2665199) and next prime (2665231).

It is not a de Polignac number, because 2665215 - 2⁴ = 2665199 is a prime.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3916 + ... + 4545.

It is an arithmetic number, because the mean of its divisors is an integer number (220012).

2^2665215 is an apocalyptic number.

2665215 is a deficient number, since it is larger than the sum of its proper divisors (2615073).

2665215 is a wasteful number, since it uses less digits than its factorization.

2665215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8479 (or 8476 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 2665215 is about 1632.5486210217. The cubic root of 2665215 is about 138.6470870664.

The spelling of 2665215 in words is "two million, six hundred sixty-five thousand, two hundred fifteen".