53439208 has 8 divisors (see below), whose sum is σ = 100198530. Its totient is φ = 26719600.

The previous prime is 53439203. The next prime is 53439209. The reversal of 53439208 is 80293435.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 49589764 + 3849444 = 7042^2 + 1962^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (53439203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3339943 + ... + 3339958.

Almost surely, 2^53439208 is an apocalyptic number.

It is an amenable number.

53439208 is a deficient number, since it is larger than the sum of its proper divisors (46759322).

53439208 is a wasteful number, since it uses less digits than its factorization.

53439208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6679907 (or 6679903 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 53439208 is about 7310.2125824083. The cubic root of 53439208 is about 376.6633266035.

The spelling of 53439208 in words is "fifty-three million, four hundred thirty-nine thousand, two hundred eight".