13525347 has 16 divisors (see below), whose sum is σ = 19998720. Its totient is φ = 8061600.

The previous prime is 13525333. The next prime is 13525361. The reversal of 13525347 is 74352531.

13525347 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (13525333) and next prime (13525361).

It is not a de Polignac number, because 13525347 - 2¹⁰ = 13524323 is a prime.

It is a super-2 number, since 2×13525347² = 365870022940818, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13525307) 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, 1347 + ... + 5372.

It is an arithmetic number, because the mean of its divisors is an integer number (1249920).

Almost surely, 2^13525347 is an apocalyptic number.

13525347 is a deficient number, since it is larger than the sum of its proper divisors (6473373).

13525347 is a wasteful number, since it uses less digits than its factorization.

13525347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6794.

The product of its digits is 12600, while the sum is 30.

The square root of 13525347 is about 3677.6822864407. The cubic root of 13525347 is about 238.2590863101.

Adding to 13525347 its reverse (74352531), we get a palindrome (87877878).

The spelling of 13525347 in words is "thirteen million, five hundred twenty-five thousand, three hundred forty-seven".