53171232 has 24 divisors (see below), whose sum is σ = 139574736. Its totient is φ = 17723712.

The previous prime is 53171221. The next prime is 53171233. The reversal of 53171232 is 23217135.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (53171233) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276838 + ... + 277029.

It is an arithmetic number, because the mean of its divisors is an integer number (5815614).

Almost surely, 2^53171232 is an apocalyptic number.

It is an amenable number.

53171232 is an abundant number, since it is smaller than the sum of its proper divisors (86403504).

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

53171232 is a wasteful number, since it uses less digits than its factorization.

53171232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553880 (or 553872 counting only the distinct ones).

The product of its digits is 1260, while the sum is 24.

The square root of 53171232 is about 7291.8606678954. The cubic root of 53171232 is about 376.0326665447.

Adding to 53171232 its reverse (23217135), we get a palindrome (76388367).

The spelling of 53171232 in words is "fifty-three million, one hundred seventy-one thousand, two hundred thirty-two".