2655659 has 4 divisors (see below), whose sum is σ = 2660016. Its totient is φ = 2651304.

The previous prime is 2655643. The next prime is 2655661. The reversal of 2655659 is 9565562.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2655659 - 2⁴ = 2655643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2655259) 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, 1079 + ... + 2544.

It is an arithmetic number, because the mean of its divisors is an integer number (665004).

2^2655659 is an apocalyptic number.

2655659 is a deficient number, since it is larger than the sum of its proper divisors (4357).

2655659 is an equidigital number, since it uses as much as digits as its factorization.

2655659 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4356.

The product of its digits is 81000, while the sum is 38.

The square root of 2655659 is about 1629.6192806910. The cubic root of 2655659 is about 138.4811844789.

Subtracting 2655659 from its reverse (9565562), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 2655659 in words is "two million, six hundred fifty-five thousand, six hundred fifty-nine".