52809904 has 40 divisors (see below), whose sum is σ = 118166048. Its totient is φ = 22394880.

The previous prime is 52809901. The next prime is 52809917. The reversal of 52809904 is 40990825.

It is not an unprimeable number, because it can be changed into a prime (52809901) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 8434 + ... + 13294.

Almost surely, 2^52809904 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 52809904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59083024).

52809904 is an abundant number, since it is smaller than the sum of its proper divisors (65356144).

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

52809904 is a wasteful number, since it uses less digits than its factorization.

52809904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4973 (or 4967 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 37.

The square root of 52809904 is about 7267.0423144495. The cubic root of 52809904 is about 375.1789462987.

The spelling of 52809904 in words is "fifty-two million, eight hundred nine thousand, nine hundred four".