56447532 has 18 divisors (see below), whose sum is σ = 142686908. Its totient is φ = 18815832.

The previous prime is 56447527. The next prime is 56447539. The reversal of 56447532 is 23574465.

56447532 is a `hidden beast` number, since 5 + 644 + 7 + 5 + 3 + 2 = 666.

56447532 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 1567987 = 56447532 / (5 + 6 + 4 + 4 + 7 + 5 + 3 + 2).

It is not an unprimeable number, because it can be changed into a prime (56447539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 783958 + ... + 784029.

Almost surely, 2^56447532 is an apocalyptic number.

It is an amenable number.

56447532 is an abundant number, since it is smaller than the sum of its proper divisors (86239376).

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

56447532 is a wasteful number, since it uses less digits than its factorization.

56447532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1567997 (or 1567992 counting only the distinct ones).

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

The square root of 56447532 is about 7513.1572591022. The cubic root of 56447532 is about 383.6026978005.

The spelling of 56447532 in words is "fifty-six million, four hundred forty-seven thousand, five hundred thirty-two".