25061252163 has 4 divisors (see below), whose sum is σ = 33415002888. Its totient is φ = 16707501440.

The previous prime is 25061252141. The next prime is 25061252171. The reversal of 25061252163 is 36125216052.

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 25061252163 - 2¹⁴ = 25061235779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25061252123) 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, 4176875358 + ... + 4176875363.

It is an arithmetic number, because the mean of its divisors is an integer number (8353750722).

Almost surely, 2^25061252163 is an apocalyptic number.

25061252163 is a deficient number, since it is larger than the sum of its proper divisors (8353750725).

25061252163 is an equidigital number, since it uses as much as digits as its factorization.

25061252163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353750724.

The product of its (nonzero) digits is 21600, while the sum is 33.

The spelling of 25061252163 in words is "twenty-five billion, sixty-one million, two hundred fifty-two thousand, one hundred sixty-three".