56543210 has 16 divisors (see below), whose sum is σ = 102308616. Its totient is φ = 22499328.

The previous prime is 56543197. The next prime is 56543219. The reversal of 56543210 is 1234565.

56543210 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 43705321 + 12837889 = 6611^2 + 3583^2 .

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 56543210.

It is not an unprimeable number, because it can be changed into a prime (56543219) 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 7 ways as a sum of consecutive naturals, for example, 12719 + ... + 16578.

Almost surely, 2^56543210 is an apocalyptic number.

56543210 is a deficient number, since it is larger than the sum of its proper divisors (45765406).

56543210 is a wasteful number, since it uses less digits than its factorization.

56543210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29497.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 56543210 is about 7519.5219262929. The cubic root of 56543210 is about 383.8193097020.

Adding to 56543210 its reverse (1234565), we get a palindrome (57777775).

The spelling of 56543210 in words is "fifty-six million, five hundred forty-three thousand, two hundred ten".