2655603553 has 4 divisors (see below), whose sum is σ = 2727376660. Its totient is φ = 2583830448.

The previous prime is 2655603551. The next prime is 2655603569. The reversal of 2655603553 is 3553065562.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3553065562 = 2 ⋅1776532781.

It can be written as a sum of positive squares in 2 ways, for example, as 2159739729 + 495863824 = 46473^2 + 22268^2 .

It is a cyclic number.

It is not a de Polignac number, because 2655603553 - 2¹ = 2655603551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2655603551) 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, 35886498 + ... + 35886571.

It is an arithmetic number, because the mean of its divisors is an integer number (681844165).

Almost surely, 2^2655603553 is an apocalyptic number.

It is an amenable number.

2655603553 is a deficient number, since it is larger than the sum of its proper divisors (71773107).

2655603553 is an equidigital number, since it uses as much as digits as its factorization.

2655603553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71773106.

The product of its (nonzero) digits is 405000, while the sum is 40.

The square root of 2655603553 is about 51532.5484815180. The cubic root of 2655603553 is about 1384.8022069805.

The spelling of 2655603553 in words is "two billion, six hundred fifty-five million, six hundred three thousand, five hundred fifty-three".