53232420 has 48 divisors (see below), whose sum is σ = 150026688. Its totient is φ = 14102400.

The previous prime is 53232407. The next prime is 53232437. The reversal of 53232420 is 2423235.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6595 + ... + 12245.

It is an arithmetic number, because the mean of its divisors is an integer number (3125556).

Almost surely, 2^53232420 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 53232420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75013344).

53232420 is an abundant number, since it is smaller than the sum of its proper divisors (96794268).

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

53232420 is a wasteful number, since it uses less digits than its factorization.

53232420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5820 (or 5818 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 21.

The square root of 53232420 is about 7296.0550984762. The cubic root of 53232420 is about 376.1768539536.

Adding to 53232420 its reverse (2423235), we get a palindrome (55655655).

The spelling of 53232420 in words is "fifty-three million, two hundred thirty-two thousand, four hundred twenty".