53311420 has 24 divisors (see below), whose sum is σ = 112369824. Its totient is φ = 21245376.

The previous prime is 53311387. The next prime is 53311421. The reversal of 53311420 is 2411335.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53311421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 729 + ... + 10351.

It is an arithmetic number, because the mean of its divisors is an integer number (4682076).

Almost surely, 2^53311420 is an apocalyptic number.

It is an amenable number.

53311420 is an abundant number, since it is smaller than the sum of its proper divisors (59058404).

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

53311420 is a wasteful number, since it uses less digits than its factorization.

53311420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9909 (or 9907 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 53311420 is about 7301.4669758892. The cubic root of 53311420 is about 376.3628513997.

Adding to 53311420 its reverse (2411335), we get a palindrome (55722755).

The spelling of 53311420 in words is "fifty-three million, three hundred eleven thousand, four hundred twenty".