2645555 has 16 divisors (see below), whose sum is σ = 3504384. Its totient is φ = 1901280.

The previous prime is 2645551. The next prime is 2645561. The reversal of 2645555 is 5555462.

2645555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2645555 - 2² = 2645551 is a prime.

It is a super-2 number, since 2×2645555² = 13997922516050, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2645551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5432 + ... + 5898.

It is an arithmetic number, because the mean of its divisors is an integer number (219024).

2^2645555 is an apocalyptic number.

2645555 is a deficient number, since it is larger than the sum of its proper divisors (858829).

2645555 is a wasteful number, since it uses less digits than its factorization.

2645555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 586.

The product of its digits is 30000, while the sum is 32.

The square root of 2645555 is about 1626.5162157200. The cubic root of 2645555 is about 138.3053345699.

The spelling of 2645555 in words is "two million, six hundred forty-five thousand, five hundred fifty-five".