56571246 has 48 divisors (see below), whose sum is σ = 131498640. Its totient is φ = 17521920.

The previous prime is 56571241. The next prime is 56571271. The reversal of 56571246 is 64217565.

It is a happy number.

56571246 is a `hidden beast` number, since 565 + 71 + 24 + 6 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 56571246.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56571241) 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 23 ways as a sum of consecutive naturals, for example, 16566 + ... + 19686.

It is an arithmetic number, because the mean of its divisors is an integer number (2739555).

Almost surely, 2^56571246 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 56571246, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65749320).

56571246 is an abundant number, since it is smaller than the sum of its proper divisors (74927394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

56571246 is a wasteful number, since it uses less digits than its factorization.

56571246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3201 (or 3198 counting only the distinct ones).

The product of its digits is 50400, while the sum is 36.

The square root of 56571246 is about 7521.3859095249. The cubic root of 56571246 is about 383.8827360040.

It can be divided in two parts, 5657 and 1246, that added together give a triangular number (6903 = T₁₁₇).

The spelling of 56571246 in words is "fifty-six million, five hundred seventy-one thousand, two hundred forty-six".