53172230 has 16 divisors (see below), whose sum is σ = 96300144. Its totient is φ = 21137760.

The previous prime is 53172193. The next prime is 53172239. The reversal of 53172230 is 3227135.

It is a junction number, because it is equal to n+sod(n) for n = 53172196 and 53172205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53172239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14681 + ... + 17940.

It is an arithmetic number, because the mean of its divisors is an integer number (6018759).

Almost surely, 2^53172230 is an apocalyptic number.

53172230 is a deficient number, since it is larger than the sum of its proper divisors (43127914).

53172230 is a wasteful number, since it uses less digits than its factorization.

53172230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32791.

The product of its (nonzero) digits is 1260, while the sum is 23.

The square root of 53172230 is about 7291.9291000393. The cubic root of 53172230 is about 376.0350191844.

Adding to 53172230 its reverse (3227135), we get a palindrome (56399365).

The spelling of 53172230 in words is "fifty-three million, one hundred seventy-two thousand, two hundred thirty".