63125137507 has 4 divisors (see below), whose sum is σ = 63125693496. Its totient is φ = 63124581520.

The previous prime is 63125137487. The next prime is 63125137513. The reversal of 63125137507 is 70573152136.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 63125137507 - 2⁷ = 63125137379 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 63125137507.

It is not an unprimeable number, because it can be changed into a prime (63125137547) 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 in 3 ways as a sum of consecutive naturals, for example, 39469 + ... + 357502.

It is an arithmetic number, because the mean of its divisors is an integer number (15781423374).

Almost surely, 2^63125137507 is an apocalyptic number.

63125137507 is a deficient number, since it is larger than the sum of its proper divisors (555989).

63125137507 is a wasteful number, since it uses less digits than its factorization.

63125137507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555988.

The product of its (nonzero) digits is 132300, while the sum is 40.

The spelling of 63125137507 in words is "sixty-three billion, one hundred twenty-five million, one hundred thirty-seven thousand, five hundred seven".