13625513 has 4 divisors (see below), whose sum is σ = 14864208. Its totient is φ = 12386820.

The previous prime is 13625501. The next prime is 13625533. The reversal of 13625513 is 31552631.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31552631 = 11 ⋅2868421.

It is a cyclic number.

It is not a de Polignac number, because 13625513 - 2⁴ = 13625497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13625533) 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, 619331 + ... + 619352.

It is an arithmetic number, because the mean of its divisors is an integer number (3716052).

Almost surely, 2^13625513 is an apocalyptic number.

It is an amenable number.

13625513 is a deficient number, since it is larger than the sum of its proper divisors (1238695).

13625513 is a wasteful number, since it uses less digits than its factorization.

13625513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1238694.

The product of its digits is 2700, while the sum is 26.

The square root of 13625513 is about 3691.2752538926. The cubic root of 13625513 is about 238.8458066009.

It can be divided in two parts, 13 and 625513, that added together give a palindrome (625526).

The spelling of 13625513 in words is "thirteen million, six hundred twenty-five thousand, five hundred thirteen".