56067647 has 4 divisors (see below), whose sum is σ = 56201880. Its totient is φ = 55933416.

The previous prime is 56067637. The next prime is 56067703. The reversal of 56067647 is 74676065.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 56067647 - 2²⁰ = 55019071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56067637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66488 + ... + 67325.

It is an arithmetic number, because the mean of its divisors is an integer number (14050470).

Almost surely, 2^56067647 is an apocalyptic number.

56067647 is a deficient number, since it is larger than the sum of its proper divisors (134233).

56067647 is a wasteful number, since it uses less digits than its factorization.

56067647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134232.

The product of its (nonzero) digits is 211680, while the sum is 41.

The square root of 56067647 is about 7487.8332647035. The cubic root of 56067647 is about 382.7402270125.

The spelling of 56067647 in words is "fifty-six million, sixty-seven thousand, six hundred forty-seven".