2553443 has 4 divisors (see below), whose sum is σ = 2557968. Its totient is φ = 2548920.

The previous prime is 2553433. The next prime is 2553457. The reversal of 2553443 is 3443552.

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

It is a cyclic number.

It is not a de Polignac number, because 2553443 - 2⁴ = 2553427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2553403) 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 in 3 ways as a sum of consecutive naturals, for example, 1271 + ... + 2592.

It is an arithmetic number, because the mean of its divisors is an integer number (639492).

2^2553443 is an apocalyptic number.

2553443 is a deficient number, since it is larger than the sum of its proper divisors (4525).

2553443 is an equidigital number, since it uses as much as digits as its factorization.

2553443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524.

The product of its digits is 7200, while the sum is 26.

The square root of 2553443 is about 1597.9496237366. The cubic root of 2553443 is about 136.6811809557.

Adding to 2553443 its reverse (3443552), we get a palindrome (5996995).

The spelling of 2553443 in words is "two million, five hundred fifty-three thousand, four hundred forty-three".