2550816 has 72 divisors (see below), whose sum is σ = 7695324. Its totient is φ = 798720.

The previous prime is 2550791. The next prime is 2550853. The reversal of 2550816 is 6180552.

It can be written as a sum of positive squares in 2 ways, for example, as 2547216 + 3600 = 1596^2 + 60^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a self number, because there is not a number n which added to its sum of digits gives 2550816.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4636 + ... + 5156.

2^2550816 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 2550816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3847662).

2550816 is an abundant number, since it is smaller than the sum of its proper divisors (5144508).

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

2550816 is a wasteful number, since it uses less digits than its factorization.

2550816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554 (or 543 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 2550816 is about 1597.1274213412. The cubic root of 2550816 is about 136.6342920208.

The spelling of 2550816 in words is "two million, five hundred fifty thousand, eight hundred sixteen".