1053501444 has 96 divisors (see below), whose sum is σ = 2902166400. Its totient is φ = 329857920.

The previous prime is 1053501443. The next prime is 1053501461. The reversal of 1053501444 is 4441053501.

It is a happy number.

It is a super-2 number, since 2×1053501444² = 2219730585020170272, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (1053501443) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 111339 + ... + 120429.

It is an arithmetic number, because the mean of its divisors is an integer number (30230900).

Almost surely, 2^1053501444 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 1053501444, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1451083200).

1053501444 is an abundant number, since it is smaller than the sum of its proper divisors (1848664956).

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

1053501444 is a wasteful number, since it uses less digits than its factorization.

1053501444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9170 (or 9162 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The square root of 1053501444 is about 32457.6869785880. The cubic root of 1053501444 is about 1017.5248985047.

Adding to 1053501444 its reverse (4441053501), we get a palindrome (5494554945).

The spelling of 1053501444 in words is "one billion, fifty-three million, five hundred one thousand, four hundred forty-four".