1252553618725 has 6 divisors (see below), whose sum is σ = 1553166487250. Its totient is φ = 1002042894960.

The previous prime is 1252553618717. The next prime is 1252553618737. The reversal of 1252553618725 is 5278163552521.

It can be written as a sum of positive squares in 3 ways, for example, as 325866297409 + 926687321316 = 570847^2 + 962646^2 .

It is not a de Polignac number, because 1252553618725 - 2³ = 1252553618717 is a prime.

It is a congruent number.

It is an unprimeable number.

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 in 5 ways as a sum of consecutive naturals, for example, 25051072350 + ... + 25051072399.

Almost surely, 2^{1252553618725} is an apocalyptic number.

It is an amenable number.

1252553618725 is a deficient number, since it is larger than the sum of its proper divisors (300612868525).

1252553618725 is an equidigital number, since it uses as much as digits as its factorization.

1252553618725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50102144759 (or 50102144754 counting only the distinct ones).

The product of its digits is 5040000, while the sum is 52.

The spelling of 1252553618725 in words is "one trillion, two hundred fifty-two billion, five hundred fifty-three million, six hundred eighteen thousand, seven hundred twenty-five".