13528551 has 8 divisors (see below), whose sum is σ = 18987520. Its totient is φ = 8544312.

The previous prime is 13528547. The next prime is 13528561. The reversal of 13528551 is 15582531.

13528551 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13528551 - 2² = 13528547 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 (13528561) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118615 + ... + 118728.

It is an arithmetic number, because the mean of its divisors is an integer number (2373440).

Almost surely, 2^13528551 is an apocalyptic number.

13528551 is a deficient number, since it is larger than the sum of its proper divisors (5458969).

13528551 is a wasteful number, since it uses less digits than its factorization.

13528551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237365.

The product of its digits is 6000, while the sum is 30.

The square root of 13528551 is about 3678.1178610806. The cubic root of 13528551 is about 238.2778984422.

The spelling of 13528551 in words is "thirteen million, five hundred twenty-eight thousand, five hundred fifty-one".