52649668 has 24 divisors (see below), whose sum is σ = 98747712. Its totient is φ = 24498144.

The previous prime is 52649657. The next prime is 52649669. The reversal of 52649668 is 86694625.

52649668 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is not an unprimeable number, because it can be changed into a prime (52649669) 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, 4330 + ... + 11137.

It is an arithmetic number, because the mean of its divisors is an integer number (4114488).

Almost surely, 2^52649668 is an apocalyptic number.

52649668 is the 3879-th centered heptagonal number.

It is an amenable number.

52649668 is a deficient number, since it is larger than the sum of its proper divisors (46098044).

52649668 is a wasteful number, since it uses less digits than its factorization.

52649668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15531 (or 15529 counting only the distinct ones).

The product of its digits is 622080, while the sum is 46.

The square root of 52649668 is about 7256.0090959149. The cubic root of 52649668 is about 374.7991054333.

The spelling of 52649668 in words is "fifty-two million, six hundred forty-nine thousand, six hundred sixty-eight".