25002755563 has 2 divisors, whose sum is σ = 25002755564. Its totient is φ = 25002755562.

The previous prime is 25002755543. The next prime is 25002755629. The reversal of 25002755563 is 36555720052.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-25002755563 is a prime.

It is not a weakly prime, because it can be changed into another prime (25002755543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12501377781 + 12501377782.

It is an arithmetic number, because the mean of its divisors is an integer number (12501377782).

Almost surely, 2^25002755563 is an apocalyptic number.

25002755563 is a deficient number, since it is larger than the sum of its proper divisors (1).

25002755563 is an equidigital number, since it uses as much as digits as its factorization.

25002755563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 315000, while the sum is 40.

The spelling of 25002755563 in words is "twenty-five billion, two million, seven hundred fifty-five thousand, five hundred sixty-three".