63545472 has 128 divisors (see below), whose sum is σ = 190699200. Its totient is φ = 21088512.

The previous prime is 63545453. The next prime is 63545479. The reversal of 63545472 is 27454536.

63545472 is a `hidden beast` number, since 63 + 54 + 547 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (63545479) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279823 + ... + 280049.

Almost surely, 2^63545472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63545472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95349600).

63545472 is an abundant number, since it is smaller than the sum of its proper divisors (127153728).

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

63545472 is an frugal number, since it uses more digits than its factorization.

63545472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262 (or 232 counting only the distinct ones).

The product of its digits is 100800, while the sum is 36.

The square root of 63545472 is about 7971.5413816902. The cubic root of 63545472 is about 399.0508160729.

The spelling of 63545472 in words is "sixty-three million, five hundred forty-five thousand, four hundred seventy-two".