13948569525 has 48 divisors (see below), whose sum is σ = 25693498368. Its totient is φ = 6619032000.

The previous prime is 13948569511. The next prime is 13948569527. The reversal of 13948569525 is 52596584931.

It is a happy number.

It is not a de Polignac number, because 13948569525 - 2⁸ = 13948569269 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13948569527) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 141091 + ... + 218640.

It is an arithmetic number, because the mean of its divisors is an integer number (535281216).

Almost surely, 2^13948569525 is an apocalyptic number.

13948569525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13948569525 is a deficient number, since it is larger than the sum of its proper divisors (11744928843).

13948569525 is a wasteful number, since it uses less digits than its factorization.

13948569525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 359802 (or 359797 counting only the distinct ones).

The product of its digits is 11664000, while the sum is 57.

The spelling of 13948569525 in words is "thirteen billion, nine hundred forty-eight million, five hundred sixty-nine thousand, five hundred twenty-five".