2640251303 has 2 divisors, whose sum is σ = 2640251304. Its totient is φ = 2640251302.

The previous prime is 2640251203. The next prime is 2640251329. The reversal of 2640251303 is 3031520462.

It is an a-pointer prime, because the next prime (2640251329) can be obtained adding 2640251303 to its sum of digits (26).

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2640251303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2640251363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1320125651 + 1320125652.

It is an arithmetic number, because the mean of its divisors is an integer number (1320125652).

Almost surely, 2^2640251303 is an apocalyptic number.

2640251303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2640251303 is an equidigital number, since it uses as much as digits as its factorization.

2640251303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 2640251303 is about 51383.3757454685. The cubic root of 2640251303 is about 1382.1284984009.

Adding to 2640251303 its reverse (3031520462), we get a palindrome (5671771765).

The spelling of 2640251303 in words is "two billion, six hundred forty million, two hundred fifty-one thousand, three hundred three".