2013553 has 2 divisors, whose sum is σ = 2013554. Its totient is φ = 2013552.

The previous prime is 2013541. The next prime is 2013589. The reversal of 2013553 is 3553102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1871424 + 142129 = 1368^2 + 377^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2013553 is a prime.

It is a plaindrome in base 13.

It is a self number, because there is not a number n which added to its sum of digits gives 2013553.

It is not a weakly prime, because it can be changed into another prime (2013533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1006776 + 1006777.

It is an arithmetic number, because the mean of its divisors is an integer number (1006777).

2^2013553 is an apocalyptic number.

It is an amenable number.

2013553 is a deficient number, since it is larger than the sum of its proper divisors (1).

2013553 is an equidigital number, since it uses as much as digits as its factorization.

2013553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 2013553 is about 1418.9971811107. The cubic root of 2013553 is about 126.2760597122.

Adding to 2013553 its reverse (3553102), we get a palindrome (5566655).

The spelling of 2013553 in words is "two million, thirteen thousand, five hundred fifty-three".