2655889 has 2 divisors, whose sum is σ = 2655890. Its totient is φ = 2655888.

The previous prime is 2655881. The next prime is 2655899. The reversal of 2655889 is 9885562.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2585664 + 70225 = 1608^2 + 265^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655889 - 2³ = 2655881 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2655881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327944 + 1327945.

It is an arithmetic number, because the mean of its divisors is an integer number (1327945).

2^2655889 is an apocalyptic number.

It is an amenable number.

2655889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655889 is an equidigital number, since it uses as much as digits as its factorization.

2655889 is an evil number, because the sum of its binary digits is even.

The product of its digits is 172800, while the sum is 43.

The square root of 2655889 is about 1629.6898477931. The cubic root of 2655889 is about 138.4851822001.

The spelling of 2655889 in words is "two million, six hundred fifty-five thousand, eight hundred eighty-nine".