2655623 has 2 divisors, whose sum is σ = 2655624. Its totient is φ = 2655622.

The previous prime is 2655607. The next prime is 2655643. The reversal of 2655623 is 3265562.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2655623 - 2⁴ = 2655607 is a prime.

It is a Sophie Germain prime.

It is a d-powerful number, because it can be written as 2⁶ + 6⁶ + 5⁵ + 5⁸ + 6⁸ + 2¹² + 3¹² .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2655643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1327811 + 1327812.

It is an arithmetic number, because the mean of its divisors is an integer number (1327812).

2^2655623 is an apocalyptic number.

2655623 is a deficient number, since it is larger than the sum of its proper divisors (1).

2655623 is an equidigital number, since it uses as much as digits as its factorization.

2655623 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10800, while the sum is 29.

The square root of 2655623 is about 1629.6082351289. The cubic root of 2655623 is about 138.4805587277.

The spelling of 2655623 in words is "two million, six hundred fifty-five thousand, six hundred twenty-three".