1252433450987 has 2 divisors, whose sum is σ = 1252433450988. Its totient is φ = 1252433450986.

The previous prime is 1252433450977. The next prime is 1252433451037. The reversal of 1252433450987 is 7890543342521.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1252433450987 is a prime.

It is a super-2 number, since 2×1252433450987² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1252433450977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626216725493 + 626216725494.

It is an arithmetic number, because the mean of its divisors is an integer number (626216725494).

Almost surely, 2^{1252433450987} is an apocalyptic number.

1252433450987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1252433450987 is an equidigital number, since it uses as much as digits as its factorization.

1252433450987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7257600, while the sum is 53.

The spelling of 1252433450987 in words is "one trillion, two hundred fifty-two billion, four hundred thirty-three million, four hundred fifty thousand, nine hundred eighty-seven".