525430709 has 2 divisors, whose sum is σ = 525430710. Its totient is φ = 525430708.

The previous prime is 525430681. The next prime is 525430721. The reversal of 525430709 is 907034525.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 507240484 + 18190225 = 22522^2 + 4265^2 .

It is a cyclic number.

It is not a de Polignac number, because 525430709 - 2¹² = 525426613 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (525430109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262715354 + 262715355.

It is an arithmetic number, because the mean of its divisors is an integer number (262715355).

Almost surely, 2^525430709 is an apocalyptic number.

It is an amenable number.

525430709 is a deficient number, since it is larger than the sum of its proper divisors (1).

525430709 is an equidigital number, since it uses as much as digits as its factorization.

525430709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 525430709 is about 22922.2753888003. The cubic root of 525430709 is about 806.9348716754.

The spelling of 525430709 in words is "five hundred twenty-five million, four hundred thirty thousand, seven hundred nine".