53430421 has 8 divisors (see below), whose sum is σ = 59709888. Its totient is φ = 47388000.

The previous prime is 53430409. The next prime is 53430427. The reversal of 53430421 is 12403435.

53430421 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 53430421 - 2¹¹ = 53428373 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 53430392 and 53430401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53430427) 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, 58785 + ... + 59686.

It is an arithmetic number, because the mean of its divisors is an integer number (7463736).

Almost surely, 2^53430421 is an apocalyptic number.

It is an amenable number.

53430421 is a deficient number, since it is larger than the sum of its proper divisors (6279467).

53430421 is a wasteful number, since it uses less digits than its factorization.

53430421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118523.

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

The square root of 53430421 is about 7309.6115491865. The cubic root of 53430421 is about 376.6426805760.

Adding to 53430421 its reverse (12403435), we get a palindrome (65833856).

The spelling of 53430421 in words is "fifty-three million, four hundred thirty thousand, four hundred twenty-one".