53989320 has 128 divisors (see below), whose sum is σ = 201968640. Its totient is φ = 11216640.

The previous prime is 53989319. The next prime is 53989343. The reversal of 53989320 is 2398935.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6319 + ... + 12161.

It is an arithmetic number, because the mean of its divisors is an integer number (1577880).

Almost surely, 2^53989320 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53989320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100984320).

53989320 is an abundant number, since it is smaller than the sum of its proper divisors (147979320).

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

53989320 is a wasteful number, since it uses less digits than its factorization.

53989320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5875 (or 5871 counting only the distinct ones).

The product of its (nonzero) digits is 58320, while the sum is 39.

The square root of 53989320 is about 7347.7425104586. The cubic root of 53989320 is about 377.9513948870.

The spelling of 53989320 in words is "fifty-three million, nine hundred eighty-nine thousand, three hundred twenty".