63525520 has 40 divisors (see below), whose sum is σ = 148204800. Its totient is φ = 25322880.

The previous prime is 63525509. The next prime is 63525533. The reversal of 63525520 is 2552536.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25281 + ... + 27679.

It is an arithmetic number, because the mean of its divisors is an integer number (3705120).

Almost surely, 2^63525520 is an apocalyptic number.

It is an amenable number.

63525520 is an abundant number, since it is smaller than the sum of its proper divisors (84679280).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

63525520 is a wasteful number, since it uses less digits than its factorization.

63525520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2743 (or 2737 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 63525520 is about 7970.2898316184. The cubic root of 63525520 is about 399.0090470580.

The spelling of 63525520 in words is "sixty-three million, five hundred twenty-five thousand, five hundred twenty".