53753220 has 60 divisors (see below), whose sum is σ = 168630924. Its totient is φ = 14333760.

The previous prime is 53753209. The next prime is 53753221. The reversal of 53753220 is 2235735.

It can be written as a sum of positive squares in 2 ways, for example, as 21399876 + 32353344 = 4626^2 + 5688^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (53753221) 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 19 ways as a sum of consecutive naturals, for example, 14971 + ... + 18210.

Almost surely, 2^53753220 is an apocalyptic number.

It is an amenable number.

53753220 is an abundant number, since it is smaller than the sum of its proper divisors (114877704).

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

53753220 is a wasteful number, since it uses less digits than its factorization.

53753220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33202 (or 33191 counting only the distinct ones).

The product of its (nonzero) digits is 6300, while the sum is 27.

The square root of 53753220 is about 7331.6587481961. The cubic root of 53753220 is about 377.3996517041.

Adding to 53753220 its reverse (2235735), we get a palindrome (55988955).

The spelling of 53753220 in words is "fifty-three million, seven hundred fifty-three thousand, two hundred twenty".