53006819944 has 64 divisors (see below), whose sum is σ = 113905083600. Its totient is φ = 22908555264.

The previous prime is 53006819909. The next prime is 53006819953. The reversal of 53006819944 is 44991860035.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 39576327844 + 13430492100 = 198938^2 + 115890^2 .

It is an unprimeable number.

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, 272202 + ... + 424390.

Almost surely, 2^53006819944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53006819944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56952541800).

53006819944 is an abundant number, since it is smaller than the sum of its proper divisors (60898263656).

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

53006819944 is a wasteful number, since it uses less digits than its factorization.

53006819944 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 152422 (or 152418 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 49.

The spelling of 53006819944 in words is "fifty-three billion, six million, eight hundred nineteen thousand, nine hundred forty-four".