63105532552 has 8 divisors (see below), whose sum is σ = 118322873550. Its totient is φ = 31552766272.

The previous prime is 63105532537. The next prime is 63105532559. The reversal of 63105532552 is 25523550136.

It can be written as a sum of positive squares in only one way, i.e., 58673435076 + 4432097476 = 242226^2 + 66574^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (63105532559) 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 as a sum of consecutive naturals, namely, 3944095777 + ... + 3944095792.

Almost surely, 2^63105532552 is an apocalyptic number.

It is an amenable number.

63105532552 is a deficient number, since it is larger than the sum of its proper divisors (55217340998).

63105532552 is a wasteful number, since it uses less digits than its factorization.

63105532552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7888191575 (or 7888191571 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 37.

The spelling of 63105532552 in words is "sixty-three billion, one hundred five million, five hundred thirty-two thousand, five hundred fifty-two".