52689378 has 32 divisors (see below), whose sum is σ = 121325184. Its totient is φ = 14942592.

The previous prime is 52689359. The next prime is 52689391. The reversal of 52689378 is 87398625.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1176 + ... + 10332.

It is an arithmetic number, because the mean of its divisors is an integer number (3791412).

Almost surely, 2^52689378 is an apocalyptic number.

52689378 is an abundant number, since it is smaller than the sum of its proper divisors (68635806).

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

52689378 is a wasteful number, since it uses less digits than its factorization.

52689378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9306.

The product of its digits is 725760, while the sum is 48.

The square root of 52689378 is about 7258.7449328379. The cubic root of 52689378 is about 374.8933100934.

The spelling of 52689378 in words is "fifty-two million, six hundred eighty-nine thousand, three hundred seventy-eight".