2103404550 has 96 divisors (see below), whose sum is σ = 5754944160. Its totient is φ = 505113600.

The previous prime is 2103404549. The next prime is 2103404561. The reversal of 2103404550 is 554043012.

It is a self number, because there is not a number n which added to its sum of digits gives 2103404550.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 66796 + ... + 93104.

It is an arithmetic number, because the mean of its divisors is an integer number (59947335).

Almost surely, 2^2103404550 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2103404550, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2877472080).

2103404550 is an abundant number, since it is smaller than the sum of its proper divisors (3651539610).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2103404550 is a wasteful number, since it uses less digits than its factorization.

2103404550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26378 (or 26373 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2103404550 is about 45862.8885919760. Note that the first 3 decimals coincide. The cubic root of 2103404550 is about 1281.2708224258.

Adding to 2103404550 its reverse (554043012), we get a palindrome (2657447562).

The spelling of 2103404550 in words is "two billion, one hundred three million, four hundred four thousand, five hundred fifty".