53209872 has 50 divisors (see below), whose sum is σ = 154008558. Its totient is φ = 17736192.

The previous prime is 53209817. The next prime is 53209901. The reversal of 53209872 is 27890235.

It is a happy number.

53209872 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 34857216 + 18352656 = 5904^2 + 4284^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 19233 + ... + 21824.

Almost surely, 2^53209872 is an apocalyptic number.

It is an amenable number.

53209872 is an abundant number, since it is smaller than the sum of its proper divisors (100798686).

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

53209872 is a wasteful number, since it uses less digits than its factorization.

53209872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41077 (or 41062 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 53209872 is about 7294.5097162181. The cubic root of 53209872 is about 376.1237332327.

The spelling of 53209872 in words is "fifty-three million, two hundred nine thousand, eight hundred seventy-two".