52123904 has 144 divisors (see below), whose sum is σ = 132451200. Its totient is φ = 19955712.

The previous prime is 52123901. The next prime is 52123913. The reversal of 52123904 is 40932125.

It is not an unprimeable number, because it can be changed into a prime (52123901) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 883427 + ... + 883485.

It is an arithmetic number, because the mean of its divisors is an integer number (919800).

Almost surely, 2^52123904 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 52123904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66225600).

52123904 is an abundant number, since it is smaller than the sum of its proper divisors (80327296).

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

52123904 is a wasteful number, since it uses less digits than its factorization.

52123904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 52123904 is about 7219.6886359455. The cubic root of 52123904 is about 373.5473376212.

The spelling of 52123904 in words is "fifty-two million, one hundred twenty-three thousand, nine hundred four".