1625245634113 has 2 divisors, whose sum is σ = 1625245634114. Its totient is φ = 1625245634112.

The previous prime is 1625245634101. The next prime is 1625245634143. The reversal of 1625245634113 is 3114365425261.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1036991915584 + 588253718529 = 1018328^2 + 766977^2 .

It is an emirp because it is prime and its reverse (3114365425261) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1625245634113 - 2⁹ = 1625245633601 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1625245634113.

It is not a weakly prime, because it can be changed into another prime (1625245634143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 812622817056 + 812622817057.

It is an arithmetic number, because the mean of its divisors is an integer number (812622817057).

Almost surely, 2^{1625245634113} is an apocalyptic number.

It is an amenable number.

1625245634113 is a deficient number, since it is larger than the sum of its proper divisors (1).

1625245634113 is an equidigital number, since it uses as much as digits as its factorization.

1625245634113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 518400, while the sum is 43.

The spelling of 1625245634113 in words is "one trillion, six hundred twenty-five billion, two hundred forty-five million, six hundred thirty-four thousand, one hundred thirteen".