53153440 has 48 divisors (see below), whose sum is σ = 127370880. Its totient is φ = 20957440.

The previous prime is 53153413. The next prime is 53153447. The reversal of 53153440 is 4435135.

It is not an unprimeable number, because it can be changed into a prime (53153447) 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, 9021 + ... + 13699.

It is an arithmetic number, because the mean of its divisors is an integer number (2653560).

Almost surely, 2^53153440 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 53153440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (63685440).

53153440 is an abundant number, since it is smaller than the sum of its proper divisors (74217440).

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

53153440 is a wasteful number, since it uses less digits than its factorization.

53153440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4765 (or 4757 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 53153440 is about 7290.6405754227. The cubic root of 53153440 is about 375.9907195536.

Adding to 53153440 its reverse (4435135), we get a palindrome (57588575).

The spelling of 53153440 in words is "fifty-three million, one hundred fifty-three thousand, four hundred forty".