2554445 has 4 divisors (see below), whose sum is σ = 3065340. Its totient is φ = 2043552.

The previous prime is 2554439. The next prime is 2554451. The reversal of 2554445 is 5444552.

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

It is an interprime number because it is at equal distance from previous prime (2554439) and next prime (2554451).

It can be written as a sum of positive squares in 2 ways, for example, as 964324 + 1590121 = 982^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 2554445 - 2⁴ = 2554429 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 255440 + ... + 255449.

It is an arithmetic number, because the mean of its divisors is an integer number (766335).

2^2554445 is an apocalyptic number.

It is an amenable number.

2554445 is a deficient number, since it is larger than the sum of its proper divisors (510895).

2554445 is an equidigital number, since it uses as much as digits as its factorization.

2554445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510894.

The product of its digits is 16000, while the sum is 29.

The square root of 2554445 is about 1598.2631197647. The cubic root of 2554445 is about 136.6990570329.

Adding to 2554445 its reverse (5444552), we get a palindrome (7998997).

The spelling of 2554445 in words is "two million, five hundred fifty-four thousand, four hundred forty-five".