53944081 has 4 divisors (see below), whose sum is σ = 53965492. Its totient is φ = 53922672.

The previous prime is 53944073. The next prime is 53944103. The reversal of 53944081 is 18044935.

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

It can be written as a sum of positive squares in 2 ways, for example, as 43349056 + 10595025 = 6584^2 + 3255^2 .

It is a cyclic number.

It is not a de Polignac number, because 53944081 - 2³ = 53944073 is a prime.

It is a super-2 number, since 2×53944081² = 5819927749869122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53944001) 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, 6330 + ... + 12163.

It is an arithmetic number, because the mean of its divisors is an integer number (13491373).

Almost surely, 2^53944081 is an apocalyptic number.

It is an amenable number.

53944081 is a deficient number, since it is larger than the sum of its proper divisors (21411).

53944081 is a wasteful number, since it uses less digits than its factorization.

53944081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21410.

The product of its (nonzero) digits is 17280, while the sum is 34.

The square root of 53944081 is about 7344.6634368091. The cubic root of 53944081 is about 377.8458004161.

The spelling of 53944081 in words is "fifty-three million, nine hundred forty-four thousand, eighty-one".