2555885553 has 32 divisors (see below), whose sum is σ = 3889872000. Its totient is φ = 1478808576.

The previous prime is 2555885539. The next prime is 2555885573. The reversal of 2555885553 is 3555885552.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-2555885553 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2555885496 and 2555885505.

It is not an unprimeable number, because it can be changed into a prime (2555885503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1125303 + ... + 1127571.

It is an arithmetic number, because the mean of its divisors is an integer number (121558500).

Almost surely, 2^2555885553 is an apocalyptic number.

It is an amenable number.

2555885553 is a deficient number, since it is larger than the sum of its proper divisors (1333986447).

2555885553 is a wasteful number, since it uses less digits than its factorization.

2555885553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4001.

The product of its digits is 6000000, while the sum is 51.

The square root of 2555885553 is about 50555.7667630509. The cubic root of 2555885553 is about 1367.2474888002.

Subtracting 2555885553 from its reverse (3555885552), we obtain a palindrome (999999999).

It can be divided in two parts, 25558 and 85553, that added together give a palindrome (111111).

The spelling of 2555885553 in words is "two billion, five hundred fifty-five million, eight hundred eighty-five thousand, five hundred fifty-three".