2513803 has 2 divisors, whose sum is σ = 2513804. Its totient is φ = 2513802.

The previous prime is 2513801. The next prime is 2513809. The reversal of 2513803 is 3083152.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2513803 - 2¹ = 2513801 is a prime.

Together with 2513801, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2513801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1256901 + 1256902.

It is an arithmetic number, because the mean of its divisors is an integer number (1256902).

2^2513803 is an apocalyptic number.

2513803 is a deficient number, since it is larger than the sum of its proper divisors (1).

2513803 is an equidigital number, since it uses as much as digits as its factorization.

2513803 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 2513803 is about 1585.4977136533. The cubic root of 2513803 is about 135.9702032473.

Adding to 2513803 its reverse (3083152), we get a palindrome (5596955).

The spelling of 2513803 in words is "two million, five hundred thirteen thousand, eight hundred three".