53521704267497 has 2 divisors, whose sum is σ = 53521704267498. Its totient is φ = 53521704267496.

The previous prime is 53521704267389. The next prime is 53521704267503. The reversal of 53521704267497 is 79476240712535.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49552927099456 + 3968777168041 = 7039384^2 + 1992179^2 .

It is a cyclic number.

It is not a de Polignac number, because 53521704267497 - 2¹⁶ = 53521704201961 is a prime.

It is not a weakly prime, because it can be changed into another prime (53521704267197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26760852133748 + 26760852133749.

It is an arithmetic number, because the mean of its divisors is an integer number (26760852133749).

Almost surely, 2^{53521704267497} is an apocalyptic number.

It is an amenable number.

53521704267497 is a deficient number, since it is larger than the sum of its proper divisors (1).

53521704267497 is an equidigital number, since it uses as much as digits as its factorization.

53521704267497 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88905600, while the sum is 62.

The spelling of 53521704267497 in words is "fifty-three trillion, five hundred twenty-one billion, seven hundred four million, two hundred sixty-seven thousand, four hundred ninety-seven".