524661409 has 2 divisors, whose sum is σ = 524661410. Its totient is φ = 524661408.

The previous prime is 524661407. The next prime is 524661433. The reversal of 524661409 is 904166425.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 503867809 + 20793600 = 22447^2 + 4560^2 .

It is a cyclic number.

It is not a de Polignac number, because 524661409 - 2¹ = 524661407 is a prime.

Together with 524661407, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (524661407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262330704 + 262330705.

It is an arithmetic number, because the mean of its divisors is an integer number (262330705).

Almost surely, 2^524661409 is an apocalyptic number.

It is an amenable number.

524661409 is a deficient number, since it is larger than the sum of its proper divisors (1).

524661409 is an equidigital number, since it uses as much as digits as its factorization.

524661409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 524661409 is about 22905.4886217256. The cubic root of 524661409 is about 806.5408595514.

The spelling of 524661409 in words is "five hundred twenty-four million, six hundred sixty-one thousand, four hundred nine".