53407239 has 8 divisors (see below), whose sum is σ = 72111360. Its totient is φ = 35153976.

The previous prime is 53407223. The next prime is 53407253. The reversal of 53407239 is 93270435.

It is a happy number.

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

It is not a de Polignac number, because 53407239 - 2⁴ = 53407223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53407139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 112437 + ... + 112910.

It is an arithmetic number, because the mean of its divisors is an integer number (9013920).

Almost surely, 2^53407239 is an apocalyptic number.

53407239 is a deficient number, since it is larger than the sum of its proper divisors (18704121).

53407239 is a wasteful number, since it uses less digits than its factorization.

53407239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225429.

The product of its (nonzero) digits is 22680, while the sum is 33.

The square root of 53407239 is about 7308.0256567694. The cubic root of 53407239 is about 376.5882010396.

The spelling of 53407239 in words is "fifty-three million, four hundred seven thousand, two hundred thirty-nine".