53215230 has 16 divisors (see below), whose sum is σ = 127716624. Its totient is φ = 14190720.

The previous prime is 53215229. The next prime is 53215247. The reversal of 53215230 is 3251235.

It is a junction number, because it is equal to n+sod(n) for n = 53215197 and 53215206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 886891 + ... + 886950.

It is an arithmetic number, because the mean of its divisors is an integer number (7982289).

Almost surely, 2^53215230 is an apocalyptic number.

53215230 is an abundant number, since it is smaller than the sum of its proper divisors (74501394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53215230 is a wasteful number, since it uses less digits than its factorization.

53215230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1773851.

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

The square root of 53215230 is about 7294.8769694903. The cubic root of 53215230 is about 376.1363574773.

Adding to 53215230 its reverse (3251235), we get a palindrome (56466465).

The spelling of 53215230 in words is "fifty-three million, two hundred fifteen thousand, two hundred thirty".