52078668 has 12 divisors (see below), whose sum is σ = 121516920. Its totient is φ = 17359552.

The previous prime is 52078661. The next prime is 52078673. The reversal of 52078668 is 86687025.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (52078661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2169933 + ... + 2169956.

It is an arithmetic number, because the mean of its divisors is an integer number (10126410).

Almost surely, 2^52078668 is an apocalyptic number.

It is an amenable number.

52078668 is an abundant number, since it is smaller than the sum of its proper divisors (69438252).

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

52078668 is a wasteful number, since it uses less digits than its factorization.

52078668 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4339896 (or 4339894 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 42.

The square root of 52078668 is about 7216.5551338572. Note that the first 3 decimals coincide. The cubic root of 52078668 is about 373.4392446818.

The spelling of 52078668 in words is "fifty-two million, seventy-eight thousand, six hundred sixty-eight".