53503111044 has 36 divisors (see below), whose sum is σ = 135295079920. Its totient is φ = 17827631280.

The previous prime is 53503111043. The next prime is 53503111091. The reversal of 53503111044 is 44011130535.

It is a happy number.

53503111044 is a `hidden beast` number, since 5 + 3 + 503 + 1 + 110 + 44 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 53503110999 and 53503111017.

It is not an unprimeable number, because it can be changed into a prime (53503111043) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 183742 + ... + 375189.

Almost surely, 2^53503111044 is an apocalyptic number.

It is an amenable number.

53503111044 is an abundant number, since it is smaller than the sum of its proper divisors (81791968876).

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

53503111044 is a wasteful number, since it uses less digits than its factorization.

53503111044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 561600 (or 561595 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 53503111044 its reverse (44011130535), we get a palindrome (97514241579).

The spelling of 53503111044 in words is "fifty-three billion, five hundred three million, one hundred eleven thousand, forty-four".