2551784080 has 80 divisors (see below), whose sum is σ = 6008365440. Its totient is φ = 1007806464.

The previous prime is 2551784077. The next prime is 2551784087. The reversal of 2551784080 is 804871552.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2551784087) 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, 3968239 + ... + 3968881.

It is an arithmetic number, because the mean of its divisors is an integer number (75104568).

Almost surely, 2^2551784080 is an apocalyptic number.

2551784080 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2551784080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3004182720).

2551784080 is an abundant number, since it is smaller than the sum of its proper divisors (3456581360).

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

2551784080 is a wasteful number, since it uses less digits than its factorization.

2551784080 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208 (or 1202 counting only the distinct ones).

The product of its (nonzero) digits is 89600, while the sum is 40.

The square root of 2551784080 is about 50515.1866273896. The cubic root of 2551784080 is about 1366.5157488186.

The spelling of 2551784080 in words is "two billion, five hundred fifty-one million, seven hundred eighty-four thousand, eighty".