13506057 has 12 divisors (see below), whose sum is σ = 19542640. Its totient is φ = 8988408.

The previous prime is 13506047. The next prime is 13506067. The reversal of 13506057 is 75060531.

13506057 is a `hidden beast` number, since 1 + 3 + 50 + 605 + 7 = 666.

It is an interprime number because it is at equal distance from previous prime (13506047) and next prime (13506067).

It is not a de Polignac number, because 13506057 - 2⁶ = 13505993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13506057.

It is not an unprimeable number, because it can be changed into a prime (13506047) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6858 + ... + 8604.

Almost surely, 2^13506057 is an apocalyptic number.

It is an amenable number.

13506057 is a deficient number, since it is larger than the sum of its proper divisors (6036583).

13506057 is a wasteful number, since it uses less digits than its factorization.

13506057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612 (or 2609 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 27.

The square root of 13506057 is about 3675.0587750402. The cubic root of 13506057 is about 238.1457631677.

Adding to 13506057 its reverse (75060531), we get a palindrome (88566588).

The spelling of 13506057 in words is "thirteen million, five hundred six thousand, fifty-seven".