52644647 has 16 divisors (see below), whose sum is σ = 59293824. Its totient is φ = 46332000.

The previous prime is 52644643. The next prime is 52644661. The reversal of 52644647 is 74644625.

52644647 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 52644647 - 2² = 52644643 is a prime.

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 52644647.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52644643) 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 15 ways as a sum of consecutive naturals, for example, 44372 + ... + 45542.

It is an arithmetic number, because the mean of its divisors is an integer number (3705864).

Almost surely, 2^52644647 is an apocalyptic number.

52644647 is a deficient number, since it is larger than the sum of its proper divisors (6649177).

52644647 is a wasteful number, since it uses less digits than its factorization.

52644647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1310.

The product of its digits is 161280, while the sum is 38.

The square root of 52644647 is about 7255.6630985734. The cubic root of 52644647 is about 374.7871906627.

The spelling of 52644647 in words is "fifty-two million, six hundred forty-four thousand, six hundred forty-seven".