525205117 has 2 divisors, whose sum is σ = 525205118. Its totient is φ = 525205116.

The previous prime is 525205111. The next prime is 525205169. The reversal of 525205117 is 711502525.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 472366756 + 52838361 = 21734^2 + 7269^2 .

It is a cyclic number.

It is not a de Polignac number, because 525205117 - 2⁷ = 525204989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525205111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262602558 + 262602559.

It is an arithmetic number, because the mean of its divisors is an integer number (262602559).

Almost surely, 2^525205117 is an apocalyptic number.

It is an amenable number.

525205117 is a deficient number, since it is larger than the sum of its proper divisors (1).

525205117 is an equidigital number, since it uses as much as digits as its factorization.

525205117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 525205117 is about 22917.3540575696. The cubic root of 525205117 is about 806.8193701721.

The spelling of 525205117 in words is "five hundred twenty-five million, two hundred five thousand, one hundred seventeen".