1053855812 has 6 divisors (see below), whose sum is σ = 1844247678. Its totient is φ = 526927904.

The previous prime is 1053855809. The next prime is 1053855827. The reversal of 1053855812 is 2185583501.

It can be written as a sum of positive squares in only one way, i.e., 714706756 + 339149056 = 26734^2 + 18416^2 .

It is a super-2 number, since 2×1053855812² = 2221224144972358688, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 131731973 + ... + 131731980.

It is an arithmetic number, because the mean of its divisors is an integer number (307374613).

Almost surely, 2^1053855812 is an apocalyptic number.

It is an amenable number.

1053855812 is a deficient number, since it is larger than the sum of its proper divisors (790391866).

1053855812 is a wasteful number, since it uses less digits than its factorization.

1053855812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263463957 (or 263463955 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The square root of 1053855812 is about 32463.1454421780. The cubic root of 1053855812 is about 1017.6389745519.

The spelling of 1053855812 in words is "one billion, fifty-three million, eight hundred fifty-five thousand, eight hundred twelve".