2500403 has 2 divisors, whose sum is σ = 2500404. Its totient is φ = 2500402.

The previous prime is 2500363. The next prime is 2500417. The reversal of 2500403 is 3040052.

2500403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (2500417) can be obtained adding 2500403 to its sum of digits (14).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2500403 - 2⁶ = 2500339 is a prime.

It is not a weakly prime, because it can be changed into another prime (2530403) 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, 1250201 + 1250202.

It is an arithmetic number, because the mean of its divisors is an integer number (1250202).

2^2500403 is an apocalyptic number.

2500403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2500403 is an equidigital number, since it uses as much as digits as its factorization.

2500403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120, while the sum is 14.

The square root of 2500403 is about 1581.2662647385. The cubic root of 2500403 is about 135.7281731732.

Adding to 2500403 its reverse (3040052), we get a palindrome (5540455).

The spelling of 2500403 in words is "two million, five hundred thousand, four hundred three".