53893639 has 4 divisors (see below), whose sum is σ = 55208160. Its totient is φ = 52579120.

The previous prime is 53893607. The next prime is 53893657. The reversal of 53893639 is 93639835.

53893639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 53893639 - 2⁵ = 53893607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53893699) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 657199 + ... + 657280.

It is an arithmetic number, because the mean of its divisors is an integer number (13802040).

Almost surely, 2^53893639 is an apocalyptic number.

53893639 is a deficient number, since it is larger than the sum of its proper divisors (1314521).

53893639 is a wasteful number, since it uses less digits than its factorization.

53893639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1314520.

The product of its digits is 524880, while the sum is 46.

The square root of 53893639 is about 7341.2287118711. The cubic root of 53893639 is about 377.7279917443.

The spelling of 53893639 in words is "fifty-three million, eight hundred ninety-three thousand, six hundred thirty-nine".