53439005 has 8 divisors (see below), whose sum is σ = 66915072. Its totient is φ = 40892368.

The previous prime is 53438977. The next prime is 53439013. The reversal of 53439005 is 50093435.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-53439005 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 232229 + ... + 232458.

It is an arithmetic number, because the mean of its divisors is an integer number (8364384).

Almost surely, 2^53439005 is an apocalyptic number.

It is an amenable number.

53439005 is a deficient number, since it is larger than the sum of its proper divisors (13476067).

53439005 is a wasteful number, since it uses less digits than its factorization.

53439005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 464715.

The product of its (nonzero) digits is 8100, while the sum is 29.

The square root of 53439005 is about 7310.1986977099. The cubic root of 53439005 is about 376.6628496581.

The spelling of 53439005 in words is "fifty-three million, four hundred thirty-nine thousand, five".