52656481 has 8 divisors (see below), whose sum is σ = 53735400. Its totient is φ = 51584640.

The previous prime is 52656469. The next prime is 52656491. The reversal of 52656481 is 18465625.

52656481 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 1032256 + 51624225 = 1016^2 + 7185^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52656481 - 2⁵ = 52656449 is a prime.

It is a super-2 number, since 2×52656481² = 5545409982606722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 52656481.

It is not an unprimeable number, because it can be changed into a prime (52656421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14805 + ... + 18013.

It is an arithmetic number, because the mean of its divisors is an integer number (6716925).

Almost surely, 2^52656481 is an apocalyptic number.

It is an amenable number.

52656481 is a deficient number, since it is larger than the sum of its proper divisors (1078919).

52656481 is a wasteful number, since it uses less digits than its factorization.

52656481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3539.

The product of its digits is 57600, while the sum is 37.

The square root of 52656481 is about 7256.4785536788. The cubic root of 52656481 is about 374.8152713862.

The spelling of 52656481 in words is "fifty-two million, six hundred fifty-six thousand, four hundred eighty-one".