52318730 has 16 divisors (see below), whose sum is σ = 94293504. Its totient is φ = 20900880.

The previous prime is 52318727. The next prime is 52318751. The reversal of 52318730 is 3781325.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 52318693 and 52318702.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 6239 + ... + 11981.

It is an arithmetic number, because the mean of its divisors is an integer number (5893344).

Almost surely, 2^52318730 is an apocalyptic number.

52318730 is a deficient number, since it is larger than the sum of its proper divisors (41974774).

52318730 is a wasteful number, since it uses less digits than its factorization.

52318730 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6661.

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 52318730 is about 7233.1687385267. The cubic root of 52318730 is about 374.0121675243.

The spelling of 52318730 in words is "fifty-two million, three hundred eighteen thousand, seven hundred thirty".