2563438480 has 20 divisors (see below), whose sum is σ = 5959994652. Its totient is φ = 1025375360.

The previous prime is 2563438429. The next prime is 2563438489. The reversal of 2563438480 is 848343652.

2563438480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1642194576 + 921243904 = 40524^2 + 30352^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is not an unprimeable number, because it can be changed into a prime (2563438489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16021411 + ... + 16021570.

Almost surely, 2^2563438480 is an apocalyptic number.

2563438480 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2563438480 is an abundant number, since it is smaller than the sum of its proper divisors (3396556172).

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

2563438480 is a wasteful number, since it uses less digits than its factorization.

2563438480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32042994 (or 32042988 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 43.

The square root of 2563438480 is about 50630.4106244459. The cubic root of 2563438480 is about 1368.5929539659.

The spelling of 2563438480 in words is "two billion, five hundred sixty-three million, four hundred thirty-eight thousand, four hundred eighty".