2580258821 has 4 divisors (see below), whose sum is σ = 2948867232. Its totient is φ = 2211650412.

The previous prime is 2580258797. The next prime is 2580258851. The reversal of 2580258821 is 1288520852.

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 2580258821 - 2²⁶ = 2513149957 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2580258851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 184304195 + ... + 184304208.

It is an arithmetic number, because the mean of its divisors is an integer number (737216808).

Almost surely, 2^2580258821 is an apocalyptic number.

It is an amenable number.

2580258821 is a deficient number, since it is larger than the sum of its proper divisors (368608411).

2580258821 is an equidigital number, since it uses as much as digits as its factorization.

2580258821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 368608410.

The product of its (nonzero) digits is 102400, while the sum is 41.

The square root of 2580258821 is about 50796.2480996382. The cubic root of 2580258821 is about 1371.5798318215.

The spelling of 2580258821 in words is "two billion, five hundred eighty million, two hundred fifty-eight thousand, eight hundred twenty-one".