1053891216 has 120 divisors (see below), whose sum is σ = 3519015840. Its totient is φ = 301105728.

The previous prime is 1053891203. The next prime is 1053891227. The reversal of 1053891216 is 6121983501.

1053891216 is a `hidden beast` number, since 10 + 538 + 91 + 21 + 6 = 666.

It is a super-2 number, since 2×1053891216² = 2221373390323917312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3726 + ... + 46061.

It is an arithmetic number, because the mean of its divisors is an integer number (29325132).

Almost surely, 2^1053891216 is an apocalyptic number.

1053891216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1053891216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1759507920).

1053891216 is an abundant number, since it is smaller than the sum of its proper divisors (2465124624).

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

1053891216 is a wasteful number, since it uses less digits than its factorization.

1053891216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49818 (or 49799 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 1053891216 is about 32463.6907328788. The cubic root of 1053891216 is about 1017.6503701927.

The spelling of 1053891216 in words is "one billion, fifty-three million, eight hundred ninety-one thousand, two hundred sixteen".