52188928 has 72 divisors (see below), whose sum is σ = 116557056. Its totient is φ = 23116800.

The previous prime is 52188911. The next prime is 52188973. The reversal of 52188928 is 82988125.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120873 + ... + 121303.

It is an arithmetic number, because the mean of its divisors is an integer number (1618848).

Almost surely, 2^52188928 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 52188928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58278528).

52188928 is an abundant number, since it is smaller than the sum of its proper divisors (64368128).

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

52188928 is a wasteful number, since it uses less digits than its factorization.

52188928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501 (or 487 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 52188928 is about 7224.1904736794. The cubic root of 52188928 is about 373.7026051466.

The spelling of 52188928 in words is "fifty-two million, one hundred eighty-eight thousand, nine hundred twenty-eight".