635725546063 has 4 divisors (see below), whose sum is σ = 635758238880. Its totient is φ = 635692853248.

The previous prime is 635725546039. The next prime is 635725546109. The reversal of 635725546063 is 360645527536.

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 635725546063 - 2³⁷ = 498286592591 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 635725546063.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (635725546003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16317223 + ... + 16356136.

It is an arithmetic number, because the mean of its divisors is an integer number (158939559720).

Almost surely, 2^635725546063 is an apocalyptic number.

635725546063 is a deficient number, since it is larger than the sum of its proper divisors (32692817).

635725546063 is a wasteful number, since it uses less digits than its factorization.

635725546063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32692816.

The product of its (nonzero) digits is 13608000, while the sum is 52.

The spelling of 635725546063 in words is "six hundred thirty-five billion, seven hundred twenty-five million, five hundred forty-six thousand, sixty-three".