2580134521 has 4 divisors (see below), whose sum is σ = 2586121344. Its totient is φ = 2574147700.

The previous prime is 2580134509. The next prime is 2580134561. The reversal of 2580134521 is 1254310852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2580134521 - 2²⁷ = 2445916793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2580134561) 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, 2992765 + ... + 2993626.

It is an arithmetic number, because the mean of its divisors is an integer number (646530336).

Almost surely, 2^2580134521 is an apocalyptic number.

It is an amenable number.

2580134521 is a deficient number, since it is larger than the sum of its proper divisors (5986823).

2580134521 is an equidigital number, since it uses as much as digits as its factorization.

2580134521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5986822.

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 2580134521 is about 50795.0245693414. The cubic root of 2580134521 is about 1371.5578068849.

The spelling of 2580134521 in words is "two billion, five hundred eighty million, one hundred thirty-four thousand, five hundred twenty-one".