13525651 has 4 divisors (see below), whose sum is σ = 13657072. Its totient is φ = 13394232.

The previous prime is 13525649. The next prime is 13525661. The reversal of 13525651 is 15652531.

13525651 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15652531 = 2861 ⋅5471.

It is a cyclic number.

It is not a de Polignac number, because 13525651 - 2¹ = 13525649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13525601) 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, 65556 + ... + 65761.

It is an arithmetic number, because the mean of its divisors is an integer number (3414268).

Almost surely, 2^13525651 is an apocalyptic number.

13525651 is a deficient number, since it is larger than the sum of its proper divisors (131421).

13525651 is a wasteful number, since it uses less digits than its factorization.

13525651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131420.

The product of its digits is 4500, while the sum is 28.

The square root of 13525651 is about 3677.7236165868. The cubic root of 13525651 is about 238.2608713591.

The spelling of 13525651 in words is "thirteen million, five hundred twenty-five thousand, six hundred fifty-one".