53030421 has 12 divisors (see below), whose sum is σ = 76707072. Its totient is φ = 35303976.

The previous prime is 53030413. The next prime is 53030447. The reversal of 53030421 is 12403035.

It is not a de Polignac number, because 53030421 - 2³ = 53030413 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 53030394 and 53030403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53030921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3340 + ... + 10826.

It is an arithmetic number, because the mean of its divisors is an integer number (6392256).

Almost surely, 2^53030421 is an apocalyptic number.

It is an amenable number.

53030421 is a deficient number, since it is larger than the sum of its proper divisors (23676651).

53030421 is a wasteful number, since it uses less digits than its factorization.

53030421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8280 (or 8277 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 18.

The square root of 53030421 is about 7282.1989124165. The cubic root of 53030421 is about 375.7004295812.

Adding to 53030421 its reverse (12403035), we get a palindrome (65433456).

The spelling of 53030421 in words is "fifty-three million, thirty thousand, four hundred twenty-one".