2580473281 has 4 divisors (see below), whose sum is σ = 2580647364. Its totient is φ = 2580299200.

The previous prime is 2580473257. The next prime is 2580473297. The reversal of 2580473281 is 1823740852.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1620465025 + 960008256 = 40255^2 + 30984^2 .

It is a cyclic number.

It is not a de Polignac number, because 2580473281 - 2²³ = 2572084673 is a prime.

It is a super-2 number, since 2×2580473281² = 13317684707909809922, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2580471281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62500 + ... + 95221.

It is an arithmetic number, because the mean of its divisors is an integer number (645161841).

Almost surely, 2^2580473281 is an apocalyptic number.

It is an amenable number.

2580473281 is a deficient number, since it is larger than the sum of its proper divisors (174083).

2580473281 is a wasteful number, since it uses less digits than its factorization.

2580473281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174082.

The product of its (nonzero) digits is 107520, while the sum is 40.

The square root of 2580473281 is about 50798.3590384571. The cubic root of 2580473281 is about 1371.6178307048.

The spelling of 2580473281 in words is "two billion, five hundred eighty million, four hundred seventy-three thousand, two hundred eighty-one".