56387547 has 6 divisors (see below), whose sum is σ = 81448692. Its totient is φ = 37591692.

The previous prime is 56387537. The next prime is 56387549. The reversal of 56387547 is 74578365.

56387547 is a `hidden beast` number, since 5 + 638 + 7 + 5 + 4 + 7 = 666.

It is not a de Polignac number, because 56387547 - 2⁴ = 56387531 is a prime.

It is not an unprimeable number, because it can be changed into a prime (56387549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3132633 + ... + 3132650.

It is an arithmetic number, because the mean of its divisors is an integer number (13574782).

Almost surely, 2^56387547 is an apocalyptic number.

56387547 is a deficient number, since it is larger than the sum of its proper divisors (25061145).

56387547 is a wasteful number, since it uses less digits than its factorization.

56387547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6265289 (or 6265286 counting only the distinct ones).

The product of its digits is 705600, while the sum is 45.

The square root of 56387547 is about 7509.1642011611. The cubic root of 56387547 is about 383.4667688376.

The spelling of 56387547 in words is "fifty-six million, three hundred eighty-seven thousand, five hundred forty-seven".