52389018 has 40 divisors (see below), whose sum is σ = 128066400. Its totient is φ = 15874920.

The previous prime is 52389013. The next prime is 52389031. The reversal of 52389018 is 81098325.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52389013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 12918 + ... + 16481.

It is an arithmetic number, because the mean of its divisors is an integer number (3201660).

Almost surely, 2^52389018 is an apocalyptic number.

52389018 is an abundant number, since it is smaller than the sum of its proper divisors (75677382).

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

52389018 is a wasteful number, since it uses less digits than its factorization.

52389018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29424 (or 29415 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 52389018 is about 7238.0258358202. The cubic root of 52389018 is about 374.1795824156.

The spelling of 52389018 in words is "fifty-two million, three hundred eighty-nine thousand, eighteen".