2605331 has 4 divisors (see below), whose sum is σ = 2695200. Its totient is φ = 2515464.

The previous prime is 2605319. The next prime is 2605349. The reversal of 2605331 is 1335062.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1335062 = 2 ⋅667531.

It is a cyclic number.

It is not a de Polignac number, because 2605331 - 2¹⁰ = 2604307 is a prime.

It is a super-2 number, since 2×2605331² = 13575499239122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2605391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44891 + ... + 44948.

It is an arithmetic number, because the mean of its divisors is an integer number (673800).

2^2605331 is an apocalyptic number.

2605331 is a deficient number, since it is larger than the sum of its proper divisors (89869).

2605331 is an equidigital number, since it uses as much as digits as its factorization.

2605331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89868.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 2605331 is about 1614.1037760937. The cubic root of 2605331 is about 137.6008032166.

The spelling of 2605331 in words is "two million, six hundred five thousand, three hundred thirty-one".