1252534422481 has 2 divisors, whose sum is σ = 1252534422482. Its totient is φ = 1252534422480.

The previous prime is 1252534422427. The next prime is 1252534422511. The reversal of 1252534422481 is 1842244352521.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1185069554881 + 67464867600 = 1088609^2 + 259740^2 .

It is an emirp because it is prime and its reverse (1842244352521) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1252534422481 - 2⁷ = 1252534422353 is a prime.

It is a super-2 number, since 2×1252534422481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1252534422401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626267211240 + 626267211241.

It is an arithmetic number, because the mean of its divisors is an integer number (626267211241).

Almost surely, 2^{1252534422481} is an apocalyptic number.

It is an amenable number.

1252534422481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252534422481 is an equidigital number, since it uses as much as digits as its factorization.

1252534422481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 614400, while the sum is 43.

The spelling of 1252534422481 in words is "one trillion, two hundred fifty-two billion, five hundred thirty-four million, four hundred twenty-two thousand, four hundred eighty-one".