525385859 has 2 divisors, whose sum is σ = 525385860. Its totient is φ = 525385858.

The previous prime is 525385843. The next prime is 525385879. The reversal of 525385859 is 958583525.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 525385859 - 2⁴ = 525385843 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (525385879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262692929 + 262692930.

It is an arithmetic number, because the mean of its divisors is an integer number (262692930).

Almost surely, 2^525385859 is an apocalyptic number.

525385859 is a deficient number, since it is larger than the sum of its proper divisors (1).

525385859 is an equidigital number, since it uses as much as digits as its factorization.

525385859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160000, while the sum is 50.

The square root of 525385859 is about 22921.2970619029. The cubic root of 525385859 is about 806.9119114270.

The spelling of 525385859 in words is "five hundred twenty-five million, three hundred eighty-five thousand, eight hundred fifty-nine".