63725459507 has 4 divisors (see below), whose sum is σ = 67079431080. Its totient is φ = 60371487936.

The previous prime is 63725459449. The next prime is 63725459521. The reversal of 63725459507 is 70595452736.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63725459507 - 2¹⁰ = 63725458483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63725459537) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676985758 + ... + 1676985795.

It is an arithmetic number, because the mean of its divisors is an integer number (16769857770).

Almost surely, 2^63725459507 is an apocalyptic number.

63725459507 is a deficient number, since it is larger than the sum of its proper divisors (3353971573).

63725459507 is a wasteful number, since it uses less digits than its factorization.

63725459507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353971572.

The product of its (nonzero) digits is 7938000, while the sum is 53.

The spelling of 63725459507 in words is "sixty-three billion, seven hundred twenty-five million, four hundred fifty-nine thousand, five hundred seven".