53938893 has 4 divisors (see below), whose sum is σ = 71918528. Its totient is φ = 35959260.

The previous prime is 53938877. The next prime is 53938957. The reversal of 53938893 is 39883935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 53938893 - 2⁴ = 53938877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53931893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8989813 + ... + 8989818.

It is an arithmetic number, because the mean of its divisors is an integer number (17979632).

Almost surely, 2^53938893 is an apocalyptic number.

It is an amenable number.

53938893 is a deficient number, since it is larger than the sum of its proper divisors (17979635).

53938893 is a wasteful number, since it uses less digits than its factorization.

53938893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17979634.

The product of its digits is 699840, while the sum is 48.

The square root of 53938893 is about 7344.3102467148. The cubic root of 53938893 is about 377.8336870892.

The spelling of 53938893 in words is "fifty-three million, nine hundred thirty-eight thousand, eight hundred ninety-three".