52543656 has 48 divisors (see below), whose sum is σ = 155244960. Its totient is φ = 15922080.

The previous prime is 52543649. The next prime is 52543657. The reversal of 52543656 is 65634525.

It is a happy number.

52543656 is a `hidden beast` number, since 52 + 543 + 65 + 6 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 52543656.

It is not an unprimeable number, because it can be changed into a prime (52543657) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32380 + ... + 33963.

It is an arithmetic number, because the mean of its divisors is an integer number (3234270).

Almost surely, 2^52543656 is an apocalyptic number.

It is an amenable number.

52543656 is an abundant number, since it is smaller than the sum of its proper divisors (102701304).

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

52543656 is a wasteful number, since it uses less digits than its factorization.

52543656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66366 (or 66359 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 52543656 is about 7248.7002972947. The cubic root of 52543656 is about 374.5473792450.

The spelling of 52543656 in words is "fifty-two million, five hundred forty-three thousand, six hundred fifty-six".