653525129 has 2 divisors, whose sum is σ = 653525130. Its totient is φ = 653525128.

The previous prime is 653525099. The next prime is 653525141. The reversal of 653525129 is 921525356.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 645414025 + 8111104 = 25405^2 + 2848^2 .

It is a cyclic number.

It is not a de Polignac number, because 653525129 - 2²⁰ = 652476553 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 653525092 and 653525101.

It is not a weakly prime, because it can be changed into another prime (653525189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 326762564 + 326762565.

It is an arithmetic number, because the mean of its divisors is an integer number (326762565).

Almost surely, 2^653525129 is an apocalyptic number.

It is an amenable number.

653525129 is a deficient number, since it is larger than the sum of its proper divisors (1).

653525129 is an equidigital number, since it uses as much as digits as its factorization.

653525129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 81000, while the sum is 38.

The square root of 653525129 is about 25564.1375563503. The cubic root of 653525129 is about 867.8022340505.

The spelling of 653525129 in words is "six hundred fifty-three million, five hundred twenty-five thousand, one hundred twenty-nine".