13993707025 has 27 divisors (see below), whose sum is σ = 17695414513. Its totient is φ = 10977776000.

The previous prime is 13993707023. The next prime is 13993707047. The reversal of 13993707025 is 52070739931.

The square root of 13993707025 is 118295.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 3743359489 + 10250347536 = 61183^2 + 101244^2 .

It is not a de Polignac number, because 13993707025 - 2¹ = 13993707023 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13993707023) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 34896825 + ... + 34897225.

Almost surely, 2^13993707025 is an apocalyptic number.

13993707025 is the 118295-th square number.

13993707025 is the 59148-th centered octagonal number.

It is an amenable number.

13993707025 is a deficient number, since it is larger than the sum of its proper divisors (3701707488).

13993707025 is an frugal number, since it uses more digits than its factorization.

13993707025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930 (or 465 counting only the distinct ones).

The product of its (nonzero) digits is 357210, while the sum is 46.

The spelling of 13993707025 in words is "thirteen billion, nine hundred ninety-three million, seven hundred seven thousand, twenty-five".