13625447 has 16 divisors (see below), whose sum is σ = 15547680. Its totient is φ = 11925760.

The previous prime is 13625431. The next prime is 13625467. The reversal of 13625447 is 74452631.

It is not a de Polignac number, because 13625447 - 2⁴ = 13625431 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13625467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38423 + ... + 38775.

It is an arithmetic number, because the mean of its divisors is an integer number (971730).

Almost surely, 2^13625447 is an apocalyptic number.

13625447 is a deficient number, since it is larger than the sum of its proper divisors (1922233).

13625447 is an equidigital number, since it uses as much as digits as its factorization.

13625447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 393 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 13625447 is about 3691.2663138820. The cubic root of 13625447 is about 238.8454209556.

The spelling of 13625447 in words is "thirteen million, six hundred twenty-five thousand, four hundred forty-seven".