2581052017 has 4 divisors (see below), whose sum is σ = 2716896880. Its totient is φ = 2445207156.

The previous prime is 2581052009. The next prime is 2581052057. The reversal of 2581052017 is 7102501852.

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 2581052017 - 2³ = 2581052009 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2581052017.

It is not an unprimeable number, because it can be changed into a prime (2581052057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67922403 + ... + 67922440.

It is an arithmetic number, because the mean of its divisors is an integer number (679224220).

Almost surely, 2^2581052017 is an apocalyptic number.

It is an amenable number.

2581052017 is a deficient number, since it is larger than the sum of its proper divisors (135844863).

2581052017 is a wasteful number, since it uses less digits than its factorization.

2581052017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135844862.

The product of its (nonzero) digits is 5600, while the sum is 31.

The square root of 2581052017 is about 50804.0551235824. The cubic root of 2581052017 is about 1371.7203629659.

Adding to 2581052017 its reverse (7102501852), we get a palindrome (9683553869).

The spelling of 2581052017 in words is "two billion, five hundred eighty-one million, fifty-two thousand, seventeen".