53403144 has 32 divisors (see below), whose sum is σ = 134835840. Its totient is φ = 17624000.

The previous prime is 53403127. The next prime is 53403157. The reversal of 53403144 is 44130435.

53403144 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 (24).

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 7 ways as a sum of consecutive naturals, for example, 8592 + ... + 13439.

It is an arithmetic number, because the mean of its divisors is an integer number (4213620).

Almost surely, 2^53403144 is an apocalyptic number.

It is an amenable number.

53403144 is an abundant number, since it is smaller than the sum of its proper divisors (81432696).

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

53403144 is a wasteful number, since it uses less digits than its factorization.

53403144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22141 (or 22137 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

The square root of 53403144 is about 7307.7454799685. The cubic root of 53403144 is about 376.5785758270.

Adding to 53403144 its reverse (44130435), we get a palindrome (97533579).

The spelling of 53403144 in words is "fifty-three million, four hundred three thousand, one hundred forty-four".