53200440 has 48 divisors (see below), whose sum is σ = 172902600. Its totient is φ = 14186688.

The previous prime is 53200439. The next prime is 53200453. The reversal of 53200440 is 4400235.

It is a happy number.

53200440 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 73530 + ... + 74249.

Almost surely, 2^53200440 is an apocalyptic number.

It is an amenable number.

53200440 is an abundant number, since it is smaller than the sum of its proper divisors (119702160).

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

53200440 is a wasteful number, since it uses less digits than its factorization.

53200440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147796 (or 147789 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 53200440 is about 7293.8631739292. The cubic root of 53200440 is about 376.1015079792.

Adding to 53200440 its reverse (4400235), we get a palindrome (57600675).

The spelling of 53200440 in words is "fifty-three million, two hundred thousand, four hundred forty".