24995317013 has 4 divisors (see below), whose sum is σ = 24996860928. Its totient is φ = 24993773100.

The previous prime is 24995317003. The next prime is 24995317021. The reversal of 24995317013 is 31071359942.

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 24995317013 - 2¹⁸ = 24995054869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (24995317003) 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, 747413 + ... + 780138.

It is an arithmetic number, because the mean of its divisors is an integer number (6249215232).

Almost surely, 2^24995317013 is an apocalyptic number.

It is an amenable number.

24995317013 is a deficient number, since it is larger than the sum of its proper divisors (1543915).

24995317013 is a wasteful number, since it uses less digits than its factorization.

24995317013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1543914.

The product of its (nonzero) digits is 204120, while the sum is 44.

The spelling of 24995317013 in words is "twenty-four billion, nine hundred ninety-five million, three hundred seventeen thousand, thirteen".