2540266303 has 4 divisors (see below), whose sum is σ = 2650712688. Its totient is φ = 2429819920.

The previous prime is 2540266301. The next prime is 2540266321. The reversal of 2540266303 is 3036620452.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2540266303 - 2¹ = 2540266301 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2540266301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55223158 + ... + 55223203.

It is an arithmetic number, because the mean of its divisors is an integer number (662678172).

Almost surely, 2^2540266303 is an apocalyptic number.

2540266303 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

2540266303 is a deficient number, since it is larger than the sum of its proper divisors (110446385).

2540266303 is a wasteful number, since it uses less digits than its factorization.

2540266303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110446384.

The product of its (nonzero) digits is 25920, while the sum is 31.

The square root of 2540266303 is about 50401.0545822208. The cubic root of 2540266303 is about 1364.4566713255.

Adding to 2540266303 its reverse (3036620452), we get a palindrome (5576886755).

The spelling of 2540266303 in words is "two billion, five hundred forty million, two hundred sixty-six thousand, three hundred three".