13253533 has 2 divisors, whose sum is σ = 13253534. Its totient is φ = 13253532.

The previous prime is 13253521. The next prime is 13253549. The reversal of 13253533 is 33535231.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12766329 + 487204 = 3573^2 + 698^2 .

It is an emirp because it is prime and its reverse (33535231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13253533 - 2¹³ = 13245341 is a prime.

It is a super-2 number, since 2×13253533² = 351312273964178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13253498 and 13253507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13253573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6626766 + 6626767.

It is an arithmetic number, because the mean of its divisors is an integer number (6626767).

Almost surely, 2^13253533 is an apocalyptic number.

It is an amenable number.

13253533 is a deficient number, since it is larger than the sum of its proper divisors (1).

13253533 is an equidigital number, since it uses as much as digits as its factorization.

13253533 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4050, while the sum is 25.

The square root of 13253533 is about 3640.5402071671. The cubic root of 13253533 is about 236.6522045870.

Adding to 13253533 its reverse (33535231), we get a palindrome (46788764).

The spelling of 13253533 in words is "thirteen million, two hundred fifty-three thousand, five hundred thirty-three".