2550243 has 4 divisors (see below), whose sum is σ = 3400328. Its totient is φ = 1700160.

The previous prime is 2550209. The next prime is 2550253. The reversal of 2550243 is 3420552.

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

It is not a de Polignac number, because 2550243 - 2⁶ = 2550179 is a prime.

It is a d-powerful number, because it can be written as 2³ + 5 + 5⁹ + 0 + 2⁷ + 4⁸ + 3¹² .

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2550203) 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, 425038 + ... + 425043.

It is an arithmetic number, because the mean of its divisors is an integer number (850082).

2^2550243 is an apocalyptic number.

2550243 is a deficient number, since it is larger than the sum of its proper divisors (850085).

2550243 is an equidigital number, since it uses as much as digits as its factorization.

2550243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850084.

The product of its (nonzero) digits is 1200, while the sum is 21.

The square root of 2550243 is about 1596.9480267059. The cubic root of 2550243 is about 136.6240603521.

Adding to 2550243 its reverse (3420552), we get a palindrome (5970795).

The spelling of 2550243 in words is "two million, five hundred fifty thousand, two hundred forty-three".