56217471 has 16 divisors (see below), whose sum is σ = 76982400. Its totient is φ = 36476960.

The previous prime is 56217443. The next prime is 56217527. The reversal of 56217471 is 17471265.

It is a cyclic number.

It is not a de Polignac number, because 56217471 - 2⁶ = 56217407 is a prime.

It is a super-3 number, since 3×56217471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56217401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19480 + ... + 22178.

It is an arithmetic number, because the mean of its divisors is an integer number (4811400).

Almost surely, 2^56217471 is an apocalyptic number.

56217471 is a deficient number, since it is larger than the sum of its proper divisors (20764929).

56217471 is a wasteful number, since it uses less digits than its factorization.

56217471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2886.

The product of its digits is 11760, while the sum is 33.

The square root of 56217471 is about 7497.8310863876. The cubic root of 56217471 is about 383.0808433489.

The spelling of 56217471 in words is "fifty-six million, two hundred seventeen thousand, four hundred seventy-one".