255603331203 has 32 divisors (see below), whose sum is σ = 379967127552. Its totient is φ = 151507274400.

The previous prime is 255603331171. The next prime is 255603331213. The reversal of 255603331203 is 302133306552.

It is not a de Polignac number, because 255603331203 - 2⁵ = 255603331171 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (255603331213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2149168 + ... + 2264978.

It is an arithmetic number, because the mean of its divisors is an integer number (11873972736).

Almost surely, 2^255603331203 is an apocalyptic number.

255603331203 is a deficient number, since it is larger than the sum of its proper divisors (124363796349).

255603331203 is a wasteful number, since it uses less digits than its factorization.

255603331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117295.

The product of its (nonzero) digits is 48600, while the sum is 33.

Adding to 255603331203 its reverse (302133306552), we get a palindrome (557736637755).

The spelling of 255603331203 in words is "two hundred fifty-five billion, six hundred three million, three hundred thirty-one thousand, two hundred three".