2640617503 has 2 divisors, whose sum is σ = 2640617504. Its totient is φ = 2640617502.

The previous prime is 2640617501. The next prime is 2640617521. The reversal of 2640617503 is 3057160462.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2640617503 - 2¹ = 2640617501 is a prime.

Together with 2640617501, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640617501) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320308751 + 1320308752.

It is an arithmetic number, because the mean of its divisors is an integer number (1320308752).

Almost surely, 2^2640617503 is an apocalyptic number.

2640617503 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640617503 is an equidigital number, since it uses as much as digits as its factorization.

2640617503 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30240, while the sum is 34.

The square root of 2640617503 is about 51386.9390312363. The cubic root of 2640617503 is about 1382.1923953562.

Adding to 2640617503 its reverse (3057160462), we get a palindrome (5697777965).

The spelling of 2640617503 in words is "two billion, six hundred forty million, six hundred seventeen thousand, five hundred three".