25103986513 has 8 divisors (see below), whose sum is σ = 26586316800. Its totient is φ = 23622281280.

The previous prime is 25103986483. The next prime is 25103986553. The reversal of 25103986513 is 31568930152.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25103986513 - 2⁹ = 25103986001 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 25103986513.

It is not an unprimeable number, because it can be changed into a prime (25103986553) 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 7 ways as a sum of consecutive naturals, for example, 72273 + ... + 235438.

It is an arithmetic number, because the mean of its divisors is an integer number (3323289600).

Almost surely, 2^25103986513 is an apocalyptic number.

It is an amenable number.

25103986513 is a deficient number, since it is larger than the sum of its proper divisors (1482330287).

25103986513 is a wasteful number, since it uses less digits than its factorization.

25103986513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312527.

The product of its (nonzero) digits is 194400, while the sum is 43.

The spelling of 25103986513 in words is "twenty-five billion, one hundred three million, nine hundred eighty-six thousand, five hundred thirteen".