63532543 has 4 divisors (see below), whose sum is σ = 65010088. Its totient is φ = 62055000.

The previous prime is 63532529. The next prime is 63532571. The reversal of 63532543 is 34523536.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63532543 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63532583) 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, 738708 + ... + 738793.

It is an arithmetic number, because the mean of its divisors is an integer number (16252522).

Almost surely, 2^63532543 is an apocalyptic number.

63532543 is a deficient number, since it is larger than the sum of its proper divisors (1477545).

63532543 is a wasteful number, since it uses less digits than its factorization.

63532543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1477544.

The product of its digits is 32400, while the sum is 31.

The square root of 63532543 is about 7970.7303931321. The cubic root of 63532543 is about 399.0237505308.

The spelling of 63532543 in words is "sixty-three million, five hundred thirty-two thousand, five hundred forty-three".