13125533 has 4 divisors (see below), whose sum is σ = 13199040. Its totient is φ = 13052028.

The previous prime is 13125527. The next prime is 13125551. The reversal of 13125533 is 33552131.

13125533 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13125533 - 2¹⁰ = 13124509 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13125499 and 13125508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122533) 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, 36485 + ... + 36842.

It is an arithmetic number, because the mean of its divisors is an integer number (3299760).

Almost surely, 2^13125533 is an apocalyptic number.

It is an amenable number.

13125533 is a deficient number, since it is larger than the sum of its proper divisors (73507).

13125533 is an equidigital number, since it uses as much as digits as its factorization.

13125533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73506.

The product of its digits is 1350, while the sum is 23.

The square root of 13125533 is about 3622.9177467892. The cubic root of 13125533 is about 235.8878920277.

Adding to 13125533 its reverse (33552131), we get a palindrome (46677664).

The spelling of 13125533 in words is "thirteen million, one hundred twenty-five thousand, five hundred thirty-three".