63525213256 has 32 divisors (see below), whose sum is σ = 120247335000. Its totient is φ = 31460294656.

The previous prime is 63525213253. The next prime is 63525213293. The reversal of 63525213256 is 65231252536.

It can be written as a sum of positive squares in 4 ways, for example, as 51953908356 + 11571304900 = 227934^2 + 107570^2 .

It is not an unprimeable number, because it can be changed into a prime (63525213253) 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 7 ways as a sum of consecutive naturals, for example, 427560 + ... + 556648.

Almost surely, 2^63525213256 is an apocalyptic number.

It is an amenable number.

63525213256 is a deficient number, since it is larger than the sum of its proper divisors (56722121744).

63525213256 is a wasteful number, since it uses less digits than its factorization.

63525213256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129681 (or 129677 counting only the distinct ones).

The product of its digits is 324000, while the sum is 40.

The spelling of 63525213256 in words is "sixty-three billion, five hundred twenty-five million, two hundred thirteen thousand, two hundred fifty-six".