53944193 has 4 divisors (see below), whose sum is σ = 54149568. Its totient is φ = 53738820.

The previous prime is 53944181. The next prime is 53944199. The reversal of 53944193 is 39144935.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39144935 = 5 ⋅7828987.

It is a cyclic number.

It is not a de Polignac number, because 53944193 - 2⁶ = 53944129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53944199) 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, 102293 + ... + 102818.

It is an arithmetic number, because the mean of its divisors is an integer number (13537392).

Almost surely, 2^53944193 is an apocalyptic number.

It is an amenable number.

53944193 is a deficient number, since it is larger than the sum of its proper divisors (205375).

53944193 is a wasteful number, since it uses less digits than its factorization.

53944193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 205374.

The product of its digits is 58320, while the sum is 38.

The square root of 53944193 is about 7344.6710613887. The cubic root of 53944193 is about 377.8460619134.

The spelling of 53944193 in words is "fifty-three million, nine hundred forty-four thousand, one hundred ninety-three".