53212611355513 has 2 divisors, whose sum is σ = 53212611355514. Its totient is φ = 53212611355512.

The previous prime is 53212611355457. The next prime is 53212611355571. The reversal of 53212611355513 is 31555311621235.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52571823913449 + 640787442064 = 7250643^2 + 800492^2 .

It is a cyclic number.

It is not a de Polignac number, because 53212611355513 - 2²⁹ = 53212074484601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 53212611355513.

It is not a weakly prime, because it can be changed into another prime (53212611352513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26606305677756 + 26606305677757.

It is an arithmetic number, because the mean of its divisors is an integer number (26606305677757).

Almost surely, 2^{53212611355513} is an apocalyptic number.

It is an amenable number.

53212611355513 is a deficient number, since it is larger than the sum of its proper divisors (1).

53212611355513 is an equidigital number, since it uses as much as digits as its factorization.

53212611355513 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 405000, while the sum is 43.

Adding to 53212611355513 its reverse (31555311621235), we get a palindrome (84767922976748).

The spelling of 53212611355513 in words is "fifty-three trillion, two hundred twelve billion, six hundred eleven million, three hundred fifty-five thousand, five hundred thirteen".