53315232 has 48 divisors (see below), whose sum is σ = 142339680. Its totient is φ = 17468672.

The previous prime is 53315221. The next prime is 53315237. The reversal of 53315232 is 23251335.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

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 (53315237) 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, 958 + ... + 10370.

It is an arithmetic number, because the mean of its divisors is an integer number (2965410).

Almost surely, 2^53315232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53315232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71169840).

53315232 is an abundant number, since it is smaller than the sum of its proper divisors (89024448).

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

53315232 is a wasteful number, since it uses less digits than its factorization.

53315232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9485 (or 9477 counting only the distinct ones).

The product of its digits is 2700, while the sum is 24.

The square root of 53315232 is about 7301.7280146552. The cubic root of 53315232 is about 376.3718217166.

Adding to 53315232 its reverse (23251335), we get a palindrome (76566567).

The spelling of 53315232 in words is "fifty-three million, three hundred fifteen thousand, two hundred thirty-two".