2580078513 has 4 divisors (see below), whose sum is σ = 3440104688. Its totient is φ = 1720052340.

The previous prime is 2580078451. The next prime is 2580078517. The reversal of 2580078513 is 3158700852.

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 not a de Polignac number, because 2580078513 - 2⁸ = 2580078257 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2580078517) 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, 430013083 + ... + 430013088.

It is an arithmetic number, because the mean of its divisors is an integer number (860026172).

Almost surely, 2^2580078513 is an apocalyptic number.

It is an amenable number.

2580078513 is a deficient number, since it is larger than the sum of its proper divisors (860026175).

2580078513 is an equidigital number, since it uses as much as digits as its factorization.

2580078513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 860026174.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 2580078513 is about 50794.4732525105. The cubic root of 2580078513 is about 1371.5478824972.

The spelling of 2580078513 in words is "two billion, five hundred eighty million, seventy-eight thousand, five hundred thirteen".