2655493 has 4 divisors (see below), whose sum is σ = 2685420. Its totient is φ = 2625568.

The previous prime is 2655481. The next prime is 2655517. The reversal of 2655493 is 3945562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3945562 = 2 ⋅1972781.

It can be written as a sum of positive squares in 2 ways, for example, as 277729 + 2377764 = 527^2 + 1542^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655493 - 2⁵ = 2655461 is a prime.

It is a Duffinian number.

2655493 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2655403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14830 + ... + 15007.

It is an arithmetic number, because the mean of its divisors is an integer number (671355).

2^2655493 is an apocalyptic number.

It is an amenable number.

2655493 is a deficient number, since it is larger than the sum of its proper divisors (29927).

2655493 is an equidigital number, since it uses as much as digits as its factorization.

2655493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29926.

The product of its digits is 32400, while the sum is 34.

The square root of 2655493 is about 1629.5683477535. The cubic root of 2655493 is about 138.4782990236.

The spelling of 2655493 in words is "two million, six hundred fifty-five thousand, four hundred ninety-three".