2580504138 has 12 divisors (see below), whose sum is σ = 5591092338. Its totient is φ = 860168040.

The previous prime is 2580504131. The next prime is 2580504191. The reversal of 2580504138 is 8314050852.

It is a happy number.

2580504138 is a `hidden beast` number, since 2 + 580 + 5 + 0 + 41 + 38 = 666.

It can be written as a sum of positive squares in only one way, i.e., 2461846689 + 118657449 = 49617^2 + 10893^2 .

It is not an unprimeable number, because it can be changed into a prime (2580504131) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 71680653 + ... + 71680688.

Almost surely, 2^2580504138 is an apocalyptic number.

2580504138 is an abundant number, since it is smaller than the sum of its proper divisors (3010588200).

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

2580504138 is a wasteful number, since it uses less digits than its factorization.

2580504138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143361349 (or 143361346 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 36.

The square root of 2580504138 is about 50798.6627579900. The cubic root of 2580504138 is about 1371.6232978986.

The spelling of 2580504138 in words is "two billion, five hundred eighty million, five hundred four thousand, one hundred thirty-eight".