2506394963 has 8 divisors (see below), whose sum is σ = 2556644688. Its totient is φ = 2456254944.

The previous prime is 2506394923. The next prime is 2506394993. The reversal of 2506394963 is 3694936052.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2506394963 - 2¹² = 2506390867 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2506394923) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19520 + ... + 73442.

It is an arithmetic number, because the mean of its divisors is an integer number (319580586).

Almost surely, 2^2506394963 is an apocalyptic number.

2506394963 is a deficient number, since it is larger than the sum of its proper divisors (50249725).

2506394963 is an equidigital number, since it uses as much as digits as its factorization.

2506394963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54853.

The product of its (nonzero) digits is 1049760, while the sum is 47.

The square root of 2506394963 is about 50063.9087866699. The cubic root of 2506394963 is about 1358.3650629780.

The spelling of 2506394963 in words is "two billion, five hundred six million, three hundred ninety-four thousand, nine hundred sixty-three".