2563328280 has 64 divisors (see below), whose sum is σ = 7719999840. Its totient is φ = 680886272.

The previous prime is 2563328269. The next prime is 2563328281. The reversal of 2563328280 is 828233652.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2563328281) 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, 10719 + ... + 72398.

Almost surely, 2^2563328280 is an apocalyptic number.

2563328280 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 2563328280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3859999920).

2563328280 is an abundant number, since it is smaller than the sum of its proper divisors (5156671560).

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

2563328280 is a wasteful number, since it uses less digits than its factorization.

2563328280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83388 (or 83384 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 39.

The square root of 2563328280 is about 50629.3223339993. The cubic root of 2563328280 is about 1368.5733421430.

The spelling of 2563328280 in words is "two billion, five hundred sixty-three million, three hundred twenty-eight thousand, two hundred eighty".