525410009 has 2 divisors, whose sum is σ = 525410010. Its totient is φ = 525410008.

The previous prime is 525409943. The next prime is 525410033. The reversal of 525410009 is 900014525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 489073225 + 36336784 = 22115^2 + 6028^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-525410009 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 525410009.

It is not a weakly prime, because it can be changed into another prime (525410069) 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, 262705004 + 262705005.

It is an arithmetic number, because the mean of its divisors is an integer number (262705005).

Almost surely, 2^525410009 is an apocalyptic number.

It is an amenable number.

525410009 is a deficient number, since it is larger than the sum of its proper divisors (1).

525410009 is an equidigital number, since it uses as much as digits as its factorization.

525410009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 26.

The square root of 525410009 is about 22921.8238584978. The cubic root of 525410009 is about 806.9242748000.

The spelling of 525410009 in words is "five hundred twenty-five million, four hundred ten thousand, nine".