2506538963 has 2 divisors, whose sum is σ = 2506538964. Its totient is φ = 2506538962.

The previous prime is 2506538953. The next prime is 2506539001. The reversal of 2506538963 is 3698356052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2506538963 is a prime.

It is not a weakly prime, because it can be changed into another prime (2506538953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1253269481 + 1253269482.

It is an arithmetic number, because the mean of its divisors is an integer number (1253269482).

Almost surely, 2^2506538963 is an apocalyptic number.

2506538963 is a deficient number, since it is larger than the sum of its proper divisors (1).

2506538963 is an equidigital number, since it uses as much as digits as its factorization.

2506538963 is an evil number, because the sum of its binary digits is even.

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

The square root of 2506538963 is about 50065.3469277903. The cubic root of 2506538963 is about 1358.3910765455.

The spelling of 2506538963 in words is "two billion, five hundred six million, five hundred thirty-eight thousand, nine hundred sixty-three".