53436976517 has 2 divisors, whose sum is σ = 53436976518. Its totient is φ = 53436976516.

The previous prime is 53436976511. The next prime is 53436976601. The reversal of 53436976517 is 71567963435.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 42224496196 + 11212480321 = 205486^2 + 105889^2 .

It is a cyclic number.

It is not a de Polignac number, because 53436976517 - 2¹⁴ = 53436960133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53436976511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26718488258 + 26718488259.

It is an arithmetic number, because the mean of its divisors is an integer number (26718488259).

Almost surely, 2^53436976517 is an apocalyptic number.

It is an amenable number.

53436976517 is a deficient number, since it is larger than the sum of its proper divisors (1).

53436976517 is an equidigital number, since it uses as much as digits as its factorization.

53436976517 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 14288400, while the sum is 56.

The spelling of 53436976517 in words is "fifty-three billion, four hundred thirty-six million, nine hundred seventy-six thousand, five hundred seventeen".