63533525 has 12 divisors (see below), whose sum is σ = 85943904. Its totient is φ = 46206000.

The previous prime is 63533507. The next prime is 63533537. The reversal of 63533525 is 52533536.

It is not a de Polignac number, because 63533525 - 2¹⁰ = 63532501 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63533491 and 63533500.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 115241 + ... + 115790.

It is an arithmetic number, because the mean of its divisors is an integer number (7161992).

Almost surely, 2^63533525 is an apocalyptic number.

It is an amenable number.

63533525 is a deficient number, since it is larger than the sum of its proper divisors (22410379).

63533525 is a wasteful number, since it uses less digits than its factorization.

63533525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231052 (or 231047 counting only the distinct ones).

The product of its digits is 40500, while the sum is 32.

The square root of 63533525 is about 7970.7919932714. The cubic root of 63533525 is about 399.0258063765.

The spelling of 63533525 in words is "sixty-three million, five hundred thirty-three thousand, five hundred twenty-five".