2550403728 has 120 divisors (see below), whose sum is σ = 7395804416. Its totient is φ = 819590400.

The previous prime is 2550403693. The next prime is 2550403771. The reversal of 2550403728 is 8273040552.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 2550403692 and 2550403701.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1369518 + ... + 1371378.

Almost surely, 2^2550403728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2550403728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3697902208).

2550403728 is an abundant number, since it is smaller than the sum of its proper divisors (4845400688).

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

2550403728 is a wasteful number, since it uses less digits than its factorization.

2550403728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2213 (or 2204 counting only the distinct ones).

The product of its (nonzero) digits is 67200, while the sum is 36.

The square root of 2550403728 is about 50501.5220364694. The cubic root of 2550403728 is about 1366.2693051662.

The spelling of 2550403728 in words is "two billion, five hundred fifty million, four hundred three thousand, seven hundred twenty-eight".