13553513 has 2 divisors, whose sum is σ = 13553514. Its totient is φ = 13553512.

The previous prime is 13553503. The next prime is 13553537. The reversal of 13553513 is 31535531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10413529 + 3139984 = 3227^2 + 1772^2 .

It is a cyclic number.

It is not a de Polignac number, because 13553513 - 2⁸ = 13553257 is a prime.

It is not a weakly prime, because it can be changed into another prime (13553503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6776756 + 6776757.

It is an arithmetic number, because the mean of its divisors is an integer number (6776757).

Almost surely, 2^13553513 is an apocalyptic number.

It is an amenable number.

13553513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13553513 is an equidigital number, since it uses as much as digits as its factorization.

13553513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3375, while the sum is 26.

The square root of 13553513 is about 3681.5096088425. The cubic root of 13553513 is about 238.4243600113.

The spelling of 13553513 in words is "thirteen million, five hundred fifty-three thousand, five hundred thirteen".