2550403 has 2 divisors, whose sum is σ = 2550404. Its totient is φ = 2550402.

The previous prime is 2550367. The next prime is 2550407. The reversal of 2550403 is 3040552.

It is a happy number.

2550403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2550403 - 2¹⁷ = 2419331 is a prime.

It is not a weakly prime, because it can be changed into another prime (2550407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1275201 + 1275202.

It is an arithmetic number, because the mean of its divisors is an integer number (1275202).

2^2550403 is an apocalyptic number.

2550403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2550403 is an equidigital number, since it uses as much as digits as its factorization.

2550403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 19.

The square root of 2550403 is about 1596.9981214767. The cubic root of 2550403 is about 136.6269175168.

Adding to 2550403 its reverse (3040552), we get a palindrome (5590955).

The spelling of 2550403 in words is "two million, five hundred fifty thousand, four hundred three".