52871920 has 20 divisors (see below), whose sum is σ = 122927400. Its totient is φ = 21148736.

The previous prime is 52871881. The next prime is 52871939. The reversal of 52871920 is 2917825.

It is a tau number, because it is divible by the number of its divisors (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 330370 + ... + 330529.

It is an arithmetic number, because the mean of its divisors is an integer number (6146370).

Almost surely, 2^52871920 is an apocalyptic number.

It is an amenable number.

52871920 is an abundant number, since it is smaller than the sum of its proper divisors (70055480).

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

52871920 is a wasteful number, since it uses less digits than its factorization.

52871920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660912 (or 660906 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 52871920 is about 7271.3079978777. The cubic root of 52871920 is about 375.3257495433.

The spelling of 52871920 in words is "fifty-two million, eight hundred seventy-one thousand, nine hundred twenty".