13525807 has 4 divisors (see below), whose sum is σ = 13537576. Its totient is φ = 13514040.

The previous prime is 13525793. The next prime is 13525849. The reversal of 13525807 is 70852531.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70852531 = 251 ⋅282281.

It is a cyclic number.

It is not a de Polignac number, because 13525807 - 2²³ = 5137199 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 (13525867) 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, 3948 + ... + 6529.

It is an arithmetic number, because the mean of its divisors is an integer number (3384394).

Almost surely, 2^13525807 is an apocalyptic number.

13525807 is a deficient number, since it is larger than the sum of its proper divisors (11769).

13525807 is a wasteful number, since it uses less digits than its factorization.

13525807 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11768.

The product of its (nonzero) digits is 8400, while the sum is 31.

The square root of 13525807 is about 3677.7448252972. The cubic root of 13525807 is about 238.2617873606.

The spelling of 13525807 in words is "thirteen million, five hundred twenty-five thousand, eight hundred seven".