2551103203 has 4 divisors (see below), whose sum is σ = 2783021688. Its totient is φ = 2319184720.

The previous prime is 2551103171. The next prime is 2551103207. The reversal of 2551103203 is 3023011552.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2551103203 - 2⁵ = 2551103171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2551103207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 115959226 + ... + 115959247.

It is an arithmetic number, because the mean of its divisors is an integer number (695755422).

Almost surely, 2^2551103203 is an apocalyptic number.

2551103203 is a deficient number, since it is larger than the sum of its proper divisors (231918485).

2551103203 is a wasteful number, since it uses less digits than its factorization.

2551103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231918484.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 2551103203 is about 50508.4468480273. The cubic root of 2551103203 is about 1366.3941983164.

Adding to 2551103203 its reverse (3023011552), we get a palindrome (5574114755).

The spelling of 2551103203 in words is "two billion, five hundred fifty-one million, one hundred three thousand, two hundred three".