2550449172 has 48 divisors (see below), whose sum is σ = 6137978112. Its totient is φ = 823804800.

The previous prime is 2550449171. The next prime is 2550449197. The reversal of 2550449172 is 2719440552.

It is a self number, because there is not a number n which added to its sum of digits gives 2550449172.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2550449171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34578 + ... + 79350.

It is an arithmetic number, because the mean of its divisors is an integer number (127874544).

Almost surely, 2^2550449172 is an apocalyptic number.

It is an amenable number.

2550449172 is an abundant number, since it is smaller than the sum of its proper divisors (3587528940).

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

2550449172 is a wasteful number, since it uses less digits than its factorization.

2550449172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44928 (or 44926 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 39.

The square root of 2550449172 is about 50501.9719614987. The cubic root of 2550449172 is about 1366.2774200086.

The spelling of 2550449172 in words is "two billion, five hundred fifty million, four hundred forty-nine thousand, one hundred seventy-two".