53332040 has 64 divisors (see below), whose sum is σ = 124407360. Its totient is φ = 20563200.

The previous prime is 53332033. The next prime is 53332051. The reversal of 53332040 is 4023335.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 173567 + ... + 173873.

It is an arithmetic number, because the mean of its divisors is an integer number (1943865).

Almost surely, 2^53332040 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 53332040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (62203680).

53332040 is an abundant number, since it is smaller than the sum of its proper divisors (71075320).

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

53332040 is a wasteful number, since it uses less digits than its factorization.

53332040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 462 (or 458 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 20.

The square root of 53332040 is about 7302.8788843853. The cubic root of 53332040 is about 376.4113688447.

Adding to 53332040 its reverse (4023335), we get a palindrome (57355375).

The spelling of 53332040 in words is "fifty-three million, three hundred thirty-two thousand, forty".