53424340 has 24 divisors (see below), whose sum is σ = 112825440. Its totient is φ = 21248928.

The previous prime is 53424311. The next prime is 53424347. The reversal of 53424340 is 4342435.

53424340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53424347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3882 + ... + 11041.

It is an arithmetic number, because the mean of its divisors is an integer number (4701060).

Almost surely, 2^53424340 is an apocalyptic number.

It is an amenable number.

53424340 is an abundant number, since it is smaller than the sum of its proper divisors (59401100).

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

53424340 is a wasteful number, since it uses less digits than its factorization.

53424340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15111 (or 15109 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

The square root of 53424340 is about 7309.1955781741. The cubic root of 53424340 is about 376.6283912691.

Adding to 53424340 its reverse (4342435), we get a palindrome (57766775).

The spelling of 53424340 in words is "fifty-three million, four hundred twenty-four thousand, three hundred forty".