53431224 has 128 divisors (see below), whose sum is σ = 172454400. Its totient is φ = 13386240.

The previous prime is 53431193. The next prime is 53431229. The reversal of 53431224 is 42213435.

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

It is a junction number, because it is equal to n+sod(n) for n = 53431194 and 53431203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53431229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53094 + ... + 54090.

It is an arithmetic number, because the mean of its divisors is an integer number (1347300).

Almost surely, 2^53431224 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 53431224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (86227200).

53431224 is an abundant number, since it is smaller than the sum of its proper divisors (119023176).

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

53431224 is a wasteful number, since it uses less digits than its factorization.

53431224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053 (or 1049 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 53431224 is about 7309.6664766595. Note that the first 3 decimals coincide. The cubic root of 53431224 is about 376.6445674072.

Adding to 53431224 its reverse (42213435), we get a palindrome (95644659).

The spelling of 53431224 in words is "fifty-three million, four hundred thirty-one thousand, two hundred twenty-four".