12510535550437 has 2 divisors, whose sum is σ = 12510535550438. Its totient is φ = 12510535550436.

The previous prime is 12510535550413. The next prime is 12510535550501. The reversal of 12510535550437 is 73405553501521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12509279627716 + 1255922721 = 3536846^2 + 35439^2 .

It is an emirp because it is prime and its reverse (73405553501521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12510535550437 - 2¹⁹ = 12510535026149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12510535557437) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6255267775218 + 6255267775219.

It is an arithmetic number, because the mean of its divisors is an integer number (6255267775219).

Almost surely, 2^{12510535550437} is an apocalyptic number.

It is an amenable number.

12510535550437 is a deficient number, since it is larger than the sum of its proper divisors (1).

12510535550437 is an equidigital number, since it uses as much as digits as its factorization.

12510535550437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1575000, while the sum is 46.

The spelling of 12510535550437 in words is "twelve trillion, five hundred ten billion, five hundred thirty-five million, five hundred fifty thousand, four hundred thirty-seven".