525115009 has 2 divisors, whose sum is σ = 525115010. Its totient is φ = 525115008.

The previous prime is 525114991. The next prime is 525115037. The reversal of 525115009 is 900511525.

It is an a-pointer prime, because the next prime (525115037) can be obtained adding 525115009 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 289952784 + 235162225 = 17028^2 + 15335^2 .

It is a cyclic number.

It is not a de Polignac number, because 525115009 - 2¹³ = 525106817 is a prime.

It is not a weakly prime, because it can be changed into another prime (525115039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262557504 + 262557505.

It is an arithmetic number, because the mean of its divisors is an integer number (262557505).

Almost surely, 2^525115009 is an apocalyptic number.

It is an amenable number.

525115009 is a deficient number, since it is larger than the sum of its proper divisors (1).

525115009 is an equidigital number, since it uses as much as digits as its factorization.

525115009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2250, while the sum is 28.

The square root of 525115009 is about 22915.3880394812. The cubic root of 525115009 is about 806.7732262716.

The spelling of 525115009 in words is "five hundred twenty-five million, one hundred fifteen thousand, nine".