525869563 has 2 divisors, whose sum is σ = 525869564. Its totient is φ = 525869562.

The previous prime is 525869543. The next prime is 525869579. The reversal of 525869563 is 365968525.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 525869563 - 2⁹ = 525869051 is a prime.

It is not a weakly prime, because it can be changed into another prime (525869543) 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 as a sum of consecutive naturals, namely, 262934781 + 262934782.

It is an arithmetic number, because the mean of its divisors is an integer number (262934782).

Almost surely, 2^525869563 is an apocalyptic number.

525869563 is a deficient number, since it is larger than the sum of its proper divisors (1).

525869563 is an equidigital number, since it uses as much as digits as its factorization.

525869563 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944000, while the sum is 49.

The square root of 525869563 is about 22931.8460443114. The cubic root of 525869563 is about 807.1594671319.

The spelling of 525869563 in words is "five hundred twenty-five million, eight hundred sixty-nine thousand, five hundred sixty-three".