53230521 has 8 divisors (see below), whose sum is σ = 71011360. Its totient is φ = 35468352.

The previous prime is 53230511. The next prime is 53230523. The reversal of 53230521 is 12503235.

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

It is not a de Polignac number, because 53230521 - 2¹⁰ = 53229497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (53230523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4641 + ... + 11313.

It is an arithmetic number, because the mean of its divisors is an integer number (8876420).

Almost surely, 2^53230521 is an apocalyptic number.

It is an amenable number.

53230521 is a deficient number, since it is larger than the sum of its proper divisors (17780839).

53230521 is a wasteful number, since it uses less digits than its factorization.

53230521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9335.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 53230521 is about 7295.9249584957. The cubic root of 53230521 is about 376.1723806875.

Adding to 53230521 its reverse (12503235), we get a palindrome (65733756).

The spelling of 53230521 in words is "fifty-three million, two hundred thirty thousand, five hundred twenty-one".