1252755113633 has 2 divisors, whose sum is σ = 1252755113634. Its totient is φ = 1252755113632.

The previous prime is 1252755113629. The next prime is 1252755113653. The reversal of 1252755113633 is 3363115572521.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 823026355264 + 429728758369 = 907208^2 + 655537^2 .

It is an emirp because it is prime and its reverse (3363115572521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252755113633 - 2² = 1252755113629 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252755113653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626377556816 + 626377556817.

It is an arithmetic number, because the mean of its divisors is an integer number (626377556817).

Almost surely, 2^{1252755113633} is an apocalyptic number.

It is an amenable number.

1252755113633 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252755113633 is an equidigital number, since it uses as much as digits as its factorization.

1252755113633 is an evil number, because the sum of its binary digits is even.

The product of its digits is 567000, while the sum is 44.

The spelling of 1252755113633 in words is "one trillion, two hundred fifty-two billion, seven hundred fifty-five million, one hundred thirteen thousand, six hundred thirty-three".