2505007863 has 10 divisors (see below), whose sum is σ = 3742048904. Its totient is φ = 1670005188.

The previous prime is 2505007853. The next prime is 2505007891. The reversal of 2505007863 is 3687005052.

2505007863 is a `hidden beast` number, since 25 + 0 + 500 + 78 + 63 = 666.

It is not a de Polignac number, because 2505007863 - 2¹⁶ = 2504942327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2505007853) 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 9 ways as a sum of consecutive naturals, for example, 15462931 + ... + 15463092.

Almost surely, 2^2505007863 is an apocalyptic number.

2505007863 is a deficient number, since it is larger than the sum of its proper divisors (1237041041).

2505007863 is an equidigital number, since it uses as much as digits as its factorization.

2505007863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30926035 (or 30926026 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 2505007863 is about 50050.0535763949. The cubic root of 2505007863 is about 1358.1144326373.

The spelling of 2505007863 in words is "two billion, five hundred five million, seven thousand, eight hundred sixty-three".