525872869 has 2 divisors, whose sum is σ = 525872870. Its totient is φ = 525872868.

The previous prime is 525872807. The next prime is 525872873. The reversal of 525872869 is 968278525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 291384900 + 234487969 = 17070^2 + 15313^2 .

It is a cyclic number.

It is not a de Polignac number, because 525872869 - 2⁷ = 525872741 is a prime.

It is a super-2 number, since 2×525872869² = 553084548700582322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525872569) 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, 262936434 + 262936435.

It is an arithmetic number, because the mean of its divisors is an integer number (262936435).

Almost surely, 2^525872869 is an apocalyptic number.

It is an amenable number.

525872869 is a deficient number, since it is larger than the sum of its proper divisors (1).

525872869 is an equidigital number, since it uses as much as digits as its factorization.

525872869 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2419200, while the sum is 52.

The square root of 525872869 is about 22931.9181273613. The cubic root of 525872869 is about 807.1611585929.

The spelling of 525872869 in words is "five hundred twenty-five million, eight hundred seventy-two thousand, eight hundred sixty-nine".