25528028063 has 2 divisors, whose sum is σ = 25528028064. Its totient is φ = 25528028062.

The previous prime is 25528028023. The next prime is 25528028077. The reversal of 25528028063 is 36082082552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 25528028063 - 2⁸ = 25528027807 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 25528028063.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25528028023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12764014031 + 12764014032.

It is an arithmetic number, because the mean of its divisors is an integer number (12764014032).

Almost surely, 2^25528028063 is an apocalyptic number.

25528028063 is a deficient number, since it is larger than the sum of its proper divisors (1).

25528028063 is an equidigital number, since it uses as much as digits as its factorization.

25528028063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 230400, while the sum is 41.

The spelling of 25528028063 in words is "twenty-five billion, five hundred twenty-eight million, twenty-eight thousand, sixty-three".