523953268249 has 2 divisors, whose sum is σ = 523953268250. Its totient is φ = 523953268248.

The previous prime is 523953268231. The next prime is 523953268259. The reversal of 523953268249 is 942862359325.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 523948688649 + 4579600 = 723843^2 + 2140^2 .

It is a cyclic number.

It is not a de Polignac number, because 523953268249 - 2⁹ = 523953267737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 523953268193 and 523953268202.

It is not a weakly prime, because it can be changed into another prime (523953268259) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 261976634124 + 261976634125.

It is an arithmetic number, because the mean of its divisors is an integer number (261976634125).

Almost surely, 2^523953268249 is an apocalyptic number.

It is an amenable number.

523953268249 is a deficient number, since it is larger than the sum of its proper divisors (1).

523953268249 is an equidigital number, since it uses as much as digits as its factorization.

523953268249 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27993600, while the sum is 58.

The spelling of 523953268249 in words is "five hundred twenty-three billion, nine hundred fifty-three million, two hundred sixty-eight thousand, two hundred forty-nine".