53544403203 has 16 divisors (see below), whose sum is σ = 73711872000. Its totient is φ = 34537112640.

The previous prime is 53544403201. The next prime is 53544403217. The reversal of 53544403203 is 30230444535.

It is a happy number.

It is not a de Polignac number, because 53544403203 - 2¹ = 53544403201 is a prime.

It is a super-2 number, since 2×53544403203² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (53544403201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 373623 + ... + 496671.

It is an arithmetic number, because the mean of its divisors is an integer number (4606992000).

Almost surely, 2^53544403203 is an apocalyptic number.

53544403203 is a deficient number, since it is larger than the sum of its proper divisors (20167468797).

53544403203 is a wasteful number, since it uses less digits than its factorization.

53544403203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127762.

The product of its (nonzero) digits is 86400, while the sum is 33.

Adding to 53544403203 its reverse (30230444535), we get a palindrome (83774847738).

The spelling of 53544403203 in words is "fifty-three billion, five hundred forty-four million, four hundred three thousand, two hundred three".