53240043 has 8 divisors (see below), whose sum is σ = 71143888. Its totient is φ = 35414784.

The previous prime is 53240023. The next prime is 53240087. The reversal of 53240043 is 34004235.

It is a happy number.

53240043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 53240043 - 2²⁰ = 52191467 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53240023) 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 7 ways as a sum of consecutive naturals, for example, 18046 + ... + 20787.

It is an arithmetic number, because the mean of its divisors is an integer number (8892986).

Almost surely, 2^53240043 is an apocalyptic number.

53240043 is a deficient number, since it is larger than the sum of its proper divisors (17903845).

53240043 is a wasteful number, since it uses less digits than its factorization.

53240043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39293.

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53240043 is about 7296.5774853694. The cubic root of 53240043 is about 376.1948095484.

Adding to 53240043 its reverse (34004235), we get a palindrome (87244278).

The spelling of 53240043 in words is "fifty-three million, two hundred forty thousand, forty-three".