13442553 has 6 divisors (see below), whose sum is σ = 19417034. Its totient is φ = 8961696.

The previous prime is 13442537. The next prime is 13442591. The reversal of 13442553 is 35524431.

It can be written as a sum of positive squares in only one way, i.e., 8982009 + 4460544 = 2997^2 + 2112^2 .

It is not a de Polignac number, because 13442553 - 2⁴ = 13442537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13442153) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 746800 + ... + 746817.

Almost surely, 2^13442553 is an apocalyptic number.

It is an amenable number.

13442553 is a deficient number, since it is larger than the sum of its proper divisors (5974481).

13442553 is a wasteful number, since it uses less digits than its factorization.

13442553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1493623 (or 1493620 counting only the distinct ones).

The product of its digits is 7200, while the sum is 27.

The square root of 13442553 is about 3666.4087333520. The cubic root of 13442553 is about 237.7719315550.

Adding to 13442553 its reverse (35524431), we get a palindrome (48966984).

The spelling of 13442553 in words is "thirteen million, four hundred forty-two thousand, five hundred fifty-three".