56205671 has 4 divisors (see below), whose sum is σ = 56413344. Its totient is φ = 55998000.

The previous prime is 56205649. The next prime is 56205679. The reversal of 56205671 is 17650265.

It is a happy number.

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 56205671 - 2¹⁰ = 56204647 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 (56205679) 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, 103430 + ... + 103971.

It is an arithmetic number, because the mean of its divisors is an integer number (14103336).

Almost surely, 2^56205671 is an apocalyptic number.

56205671 is a deficient number, since it is larger than the sum of its proper divisors (207673).

56205671 is a wasteful number, since it uses less digits than its factorization.

56205671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207672.

The product of its (nonzero) digits is 12600, while the sum is 32.

The square root of 56205671 is about 7497.0441508637. The cubic root of 56205671 is about 383.0540386908.

The spelling of 56205671 in words is "fifty-six million, two hundred five thousand, six hundred seventy-one".