25620546163 has 2 divisors, whose sum is σ = 25620546164. Its totient is φ = 25620546162.

The previous prime is 25620546121. The next prime is 25620546179. The reversal of 25620546163 is 36164502652.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25620546163 - 2¹⁷ = 25620415091 is a prime.

It is not a weakly prime, because it can be changed into another prime (25620546113) 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 as a sum of consecutive naturals, namely, 12810273081 + 12810273082.

It is an arithmetic number, because the mean of its divisors is an integer number (12810273082).

Almost surely, 2^25620546163 is an apocalyptic number.

25620546163 is a deficient number, since it is larger than the sum of its proper divisors (1).

25620546163 is an equidigital number, since it uses as much as digits as its factorization.

25620546163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 40.

The spelling of 25620546163 in words is "twenty-five billion, six hundred twenty million, five hundred forty-six thousand, one hundred sixty-three".