53043421 has 8 divisors (see below), whose sum is σ = 56073600. Its totient is φ = 50037120.

The previous prime is 53043413. The next prime is 53043437. The reversal of 53043421 is 12434035.

53043421 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 a cyclic number.

It is not a de Polignac number, because 53043421 - 2³ = 53043413 is a prime.

It is a super-2 number, since 2×53043421² = 5627209022766482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53043392 and 53043401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53043481) 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, 1300 + ... + 10381.

It is an arithmetic number, because the mean of its divisors is an integer number (7009200).

Almost surely, 2^53043421 is an apocalyptic number.

It is an amenable number.

53043421 is a deficient number, since it is larger than the sum of its proper divisors (3030179).

53043421 is a wasteful number, since it uses less digits than its factorization.

53043421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11939.

The product of its (nonzero) digits is 1440, while the sum is 22.

The square root of 53043421 is about 7283.0914452587. The cubic root of 53043421 is about 375.7311270969.

Adding to 53043421 its reverse (12434035), we get a palindrome (65477456).

The spelling of 53043421 in words is "fifty-three million, forty-three thousand, four hundred twenty-one".