52489920 has 224 divisors, whose sum is σ = 194876928. Its totient is φ = 11722752.

The previous prime is 52489909. The next prime is 52490051. The reversal of 52489920 is 2998425.

It is a tau number, because it is divible by the number of its divisors (224).

It is a congruent number.

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 31 ways as a sum of consecutive naturals, for example, 490507 + ... + 490613.

Almost surely, 2^52489920 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 52489920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97438464).

52489920 is an abundant number, since it is smaller than the sum of its proper divisors (142387008).

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

52489920 is a wasteful number, since it uses less digits than its factorization.

52489920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 207 (or 197 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 39.

The square root of 52489920 is about 7244.9927536196. The cubic root of 52489920 is about 374.4196534354.

The spelling of 52489920 in words is "fifty-two million, four hundred eighty-nine thousand, nine hundred twenty".