523320413249 has 2 divisors, whose sum is σ = 523320413250. Its totient is φ = 523320413248.

The previous prime is 523320413221. The next prime is 523320413321. The reversal of 523320413249 is 942314023325.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 486287259649 + 37033153600 = 697343^2 + 192440^2 .

It is a cyclic number.

It is not a de Polignac number, because 523320413249 - 2²⁸ = 523051977793 is a prime.

It is not a weakly prime, because it can be changed into another prime (523320413549) 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, 261660206624 + 261660206625.

It is an arithmetic number, because the mean of its divisors is an integer number (261660206625).

Almost surely, 2^523320413249 is an apocalyptic number.

It is an amenable number.

523320413249 is a deficient number, since it is larger than the sum of its proper divisors (1).

523320413249 is an equidigital number, since it uses as much as digits as its factorization.

523320413249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 523320413249 in words is "five hundred twenty-three billion, three hundred twenty million, four hundred thirteen thousand, two hundred forty-nine".