2215455 has 32 divisors (see below), whose sum is σ = 4008960. Its totient is φ = 1034880.

The previous prime is 2215417. The next prime is 2215463. The reversal of 2215455 is 5545122.

It is a happy number.

It is not a de Polignac number, because 2215455 - 2⁷ = 2215327 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4554 + ... + 5016.

It is an arithmetic number, because the mean of its divisors is an integer number (125280).

2^2215455 is an apocalyptic number.

2215455 is a deficient number, since it is larger than the sum of its proper divisors (1793505).

2215455 is a wasteful number, since it uses less digits than its factorization.

2215455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 511.

The product of its digits is 2000, while the sum is 24.

The square root of 2215455 is about 1488.4404590040. The cubic root of 2215455 is about 130.3629894526.

The spelling of 2215455 in words is "two million, two hundred fifteen thousand, four hundred fifty-five".