1252550443453 has 2 divisors, whose sum is σ = 1252550443454. Its totient is φ = 1252550443452.

The previous prime is 1252550443427. The next prime is 1252550443457. The reversal of 1252550443453 is 3543440552521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1162390172164 + 90160271289 = 1078142^2 + 300267^2 .

It is a cyclic number.

It is not a de Polignac number, because 1252550443453 - 2¹⁷ = 1252550312381 is a prime.

It is a super-2 number, since 2×1252550443453² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1252550443457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626275221726 + 626275221727.

It is an arithmetic number, because the mean of its divisors is an integer number (626275221727).

Almost surely, 2^{1252550443453} is an apocalyptic number.

It is an amenable number.

1252550443453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252550443453 is an equidigital number, since it uses as much as digits as its factorization.

1252550443453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440000, while the sum is 43.

Adding to 1252550443453 its reverse (3543440552521), we get a palindrome (4795990995974).

The spelling of 1252550443453 in words is "one trillion, two hundred fifty-two billion, five hundred fifty million, four hundred forty-three thousand, four hundred fifty-three".