25056345634513 has 8 divisors (see below), whose sum is σ = 25069168923840. Its totient is φ = 25043522873520.

The previous prime is 25056345634433. The next prime is 25056345634517. The reversal of 25056345634513 is 31543654365052.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25056345634513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25056345634517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124566006 + ... + 124766992.

It is an arithmetic number, because the mean of its divisors is an integer number (3133646115480).

Almost surely, 2^{25056345634513} is an apocalyptic number.

It is an amenable number.

25056345634513 is a deficient number, since it is larger than the sum of its proper divisors (12823289327).

25056345634513 is a wasteful number, since it uses less digits than its factorization.

25056345634513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264167.

The product of its (nonzero) digits is 19440000, while the sum is 52.

Adding to 25056345634513 its reverse (31543654365052), we get a palindrome (56599999999565).

The spelling of 25056345634513 in words is "twenty-five trillion, fifty-six billion, three hundred forty-five million, six hundred thirty-four thousand, five hundred thirteen".