56616471 has 12 divisors (see below), whose sum is σ = 82124640. Its totient is φ = 37584960.

The previous prime is 56616457. The next prime is 56616481. The reversal of 56616471 is 17461665.

56616471 is a `hidden beast` number, since 5 + 6 + 6 + 1 + 647 + 1 = 666.

It is not a de Polignac number, because 56616471 - 2¹⁴ = 56600087 is a prime.

It is a super-3 number, since 3×56616471³ (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 (56616451) 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 11 ways as a sum of consecutive naturals, for example, 11010 + ... + 15311.

It is an arithmetic number, because the mean of its divisors is an integer number (6843720).

Almost surely, 2^56616471 is an apocalyptic number.

56616471 is a deficient number, since it is larger than the sum of its proper divisors (25508169).

56616471 is a wasteful number, since it uses less digits than its factorization.

56616471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26566 (or 26563 counting only the distinct ones).

The product of its digits is 30240, while the sum is 36.

The square root of 56616471 is about 7524.3917362136. The cubic root of 56616471 is about 383.9850051111.

The spelling of 56616471 in words is "fifty-six million, six hundred sixteen thousand, four hundred seventy-one".