1053505444 has 12 divisors (see below), whose sum is σ = 1844333568. Its totient is φ = 526553000.

The previous prime is 1053505421. The next prime is 1053505463. The reversal of 1053505444 is 4445053501.

It is a happy number.

It is a super-2 number, since 2×1053505444² = 2219747441075274272, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37732 + ... + 59419.

It is an arithmetic number, because the mean of its divisors is an integer number (153694464).

Almost surely, 2^1053505444 is an apocalyptic number.

It is an amenable number.

1053505444 is a deficient number, since it is larger than the sum of its proper divisors (790828124).

1053505444 is a wasteful number, since it uses less digits than its factorization.

1053505444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99866 (or 99864 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

The square root of 1053505444 is about 32457.7485972148. The cubic root of 1053505444 is about 1017.5261863038.

Adding to 1053505444 its reverse (4445053501), we get a palindrome (5498558945).

The spelling of 1053505444 in words is "one billion, fifty-three million, five hundred five thousand, four hundred forty-four".