2506616303 has 4 divisors (see below), whose sum is σ = 2567753328. Its totient is φ = 2445479280.

The previous prime is 2506616263. The next prime is 2506616309. The reversal of 2506616303 is 3036166052.

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 2506616303 - 2¹⁴ = 2506599919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2506616303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2506616309) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30568451 + ... + 30568532.

It is an arithmetic number, because the mean of its divisors is an integer number (641938332).

Almost surely, 2^2506616303 is an apocalyptic number.

2506616303 is a deficient number, since it is larger than the sum of its proper divisors (61137025).

2506616303 is an equidigital number, since it uses as much as digits as its factorization.

2506616303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61137024.

The product of its (nonzero) digits is 19440, while the sum is 32.

The square root of 2506616303 is about 50066.1193123653. The cubic root of 2506616303 is about 1358.4050475877.

The spelling of 2506616303 in words is "two billion, five hundred six million, six hundred sixteen thousand, three hundred three".