2505494963 has 4 divisors (see below), whose sum is σ = 2505800640. Its totient is φ = 2505189288.

The previous prime is 2505494951. The next prime is 2505495007. The reversal of 2505494963 is 3694945052.

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 2505494963 - 2⁶ = 2505494899 is a prime.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2505494863) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 140195 + ... + 157052.

It is an arithmetic number, because the mean of its divisors is an integer number (626450160).

Almost surely, 2^2505494963 is an apocalyptic number.

2505494963 is a deficient number, since it is larger than the sum of its proper divisors (305677).

2505494963 is an equidigital number, since it uses as much as digits as its factorization.

2505494963 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305676.

The product of its (nonzero) digits is 1166400, while the sum is 47.

The square root of 2505494963 is about 50054.9194685198. The cubic root of 2505494963 is about 1358.2024556033.

The spelling of 2505494963 in words is "two billion, five hundred five million, four hundred ninety-four thousand, nine hundred sixty-three".