13725553 has 4 divisors (see below), whose sum is σ = 13930480. Its totient is φ = 13520628.

The previous prime is 13725527. The next prime is 13725559. The reversal of 13725553 is 35552731.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13725553 - 2²¹ = 11628401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13725559) 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, 102363 + ... + 102496.

It is an arithmetic number, because the mean of its divisors is an integer number (3482620).

Almost surely, 2^13725553 is an apocalyptic number.

It is an amenable number.

13725553 is a deficient number, since it is larger than the sum of its proper divisors (204927).

13725553 is an equidigital number, since it uses as much as digits as its factorization.

13725553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204926.

The product of its digits is 15750, while the sum is 31.

The square root of 13725553 is about 3704.8013442019. The cubic root of 13725553 is about 239.4289257853.

The spelling of 13725553 in words is "thirteen million, seven hundred twenty-five thousand, five hundred fifty-three".