63561072 has 40 divisors (see below), whose sum is σ = 164520720. Its totient is φ = 21145600.

The previous prime is 63561059. The next prime is 63561073. The reversal of 63561072 is 27016536.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63561073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32704 + ... + 34592.

It is an arithmetic number, because the mean of its divisors is an integer number (4113018).

Almost surely, 2^63561072 is an apocalyptic number.

It is an amenable number.

63561072 is an abundant number, since it is smaller than the sum of its proper divisors (100959648).

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

63561072 is a wasteful number, since it uses less digits than its factorization.

63561072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601 (or 2595 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 63561072 is about 7972.5198024213. The cubic root of 63561072 is about 399.0834681943.

The spelling of 63561072 in words is "sixty-three million, five hundred sixty-one thousand, seventy-two".