2649503 has 2 divisors, whose sum is σ = 2649504. Its totient is φ = 2649502.

The previous prime is 2649499. The next prime is 2649529. The reversal of 2649503 is 3059462.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2649503 - 2² = 2649499 is a prime.

It is a super-2 number, since 2×2649503² = 14039732294018, which contains 22 as substring.

It is a d-powerful number, because it can be written as 2⁵ + 6 + 4¹⁰ + 9⁴ + 5 + 0 + 3¹³ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2649553) 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 as a sum of consecutive naturals, namely, 1324751 + 1324752.

It is an arithmetic number, because the mean of its divisors is an integer number (1324752).

2^2649503 is an apocalyptic number.

2649503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2649503 is an equidigital number, since it uses as much as digits as its factorization.

2649503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2649503 is about 1627.7294001154. The cubic root of 2649503 is about 138.3740987258.

The spelling of 2649503 in words is "two million, six hundred forty-nine thousand, five hundred three".