1252534422427 has 2 divisors, whose sum is σ = 1252534422428. Its totient is φ = 1252534422426.

The previous prime is 1252534422401. The next prime is 1252534422481. The reversal of 1252534422427 is 7242244352521.

It is a weak prime.

It is an emirp because it is prime and its reverse (7242244352521) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252534422427 is a prime.

It is not a weakly prime, because it can be changed into another prime (1252534425427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626267211213 + 626267211214.

It is an arithmetic number, because the mean of its divisors is an integer number (626267211214).

Almost surely, 2^{1252534422427} is an apocalyptic number.

1252534422427 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252534422427 is an equidigital number, since it uses as much as digits as its factorization.

1252534422427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1075200, while the sum is 43.

Adding to 1252534422427 its reverse (7242244352521), we get a palindrome (8494778774948).

The spelling of 1252534422427 in words is "one trillion, two hundred fifty-two billion, five hundred thirty-four million, four hundred twenty-two thousand, four hundred twenty-seven".