63187725625 has 10 divisors (see below), whose sum is σ = 78959382722. Its totient is φ = 50550180000.

The previous prime is 63187725607. The next prime is 63187725647. The reversal of 63187725625 is 52652778136.

It is a happy number.

63187725625 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 5 ways, for example, as 35858345769 + 27329379856 = 189363^2 + 165316^2 .

It is not a de Polignac number, because 63187725625 - 2⁹ = 63187725113 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 50549556 + ... + 50550805.

Almost surely, 2^63187725625 is an apocalyptic number.

It is an amenable number.

63187725625 is a deficient number, since it is larger than the sum of its proper divisors (15771657097).

63187725625 is an equidigital number, since it uses as much as digits as its factorization.

63187725625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101100381 (or 101100366 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 52.

The spelling of 63187725625 in words is "sixty-three billion, one hundred eighty-seven million, seven hundred twenty-five thousand, six hundred twenty-five".