13407553 has 4 divisors (see below), whose sum is σ = 13463428. Its totient is φ = 13351680.

The previous prime is 13407539. The next prime is 13407601. The reversal of 13407553 is 35570431.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5438224 + 7969329 = 2332^2 + 2823^2 .

It is a cyclic number.

It is not a de Polignac number, because 13407553 - 2¹³ = 13399361 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is not an unprimeable number, because it can be changed into a prime (13408553) 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, 27576 + ... + 28057.

It is an arithmetic number, because the mean of its divisors is an integer number (3365857).

Almost surely, 2^13407553 is an apocalyptic number.

It is an amenable number.

13407553 is a deficient number, since it is larger than the sum of its proper divisors (55875).

13407553 is an equidigital number, since it uses as much as digits as its factorization.

13407553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55874.

The product of its (nonzero) digits is 6300, while the sum is 28.

The square root of 13407553 is about 3661.6325593921. The cubic root of 13407553 is about 237.5653921505.

Adding to 13407553 its reverse (35570431), we get a palindrome (48977984).

The spelling of 13407553 in words is "thirteen million, four hundred seven thousand, five hundred fifty-three".