13725563 has 4 divisors (see below), whose sum is σ = 13807920. Its totient is φ = 13643208.

The previous prime is 13725559. The next prime is 13725587. The reversal of 13725563 is 36552731.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36552731 = 29 ⋅1260439.

It is a cyclic number.

It is not a de Polignac number, because 13725563 - 2² = 13725559 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13725763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 40928 + ... + 41261.

It is an arithmetic number, because the mean of its divisors is an integer number (3451980).

Almost surely, 2^13725563 is an apocalyptic number.

13725563 is a deficient number, since it is larger than the sum of its proper divisors (82357).

13725563 is an equidigital number, since it uses as much as digits as its factorization.

13725563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82356.

The product of its digits is 18900, while the sum is 32.

The square root of 13725563 is about 3704.8026938017. The cubic root of 13725563 is about 239.4289839320.

The spelling of 13725563 in words is "thirteen million, seven hundred twenty-five thousand, five hundred sixty-three".