891112053 has 16 divisors (see below), whose sum is σ = 1280181056. Its totient is φ = 548104320.

The previous prime is 891112049. The next prime is 891112067. The reversal of 891112053 is 350211198.

It is not a de Polignac number, because 891112053 - 2² = 891112049 is a prime.

It is the 29852-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 891112053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891112003) by changing a digit.

It is a nontrivial repunit in base 29851.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97698 + ... + 106428.

It is an arithmetic number, because the mean of its divisors is an integer number (80011316).

Almost surely, 2^891112053 is an apocalyptic number.

It is an amenable number.

891112053 is a deficient number, since it is larger than the sum of its proper divisors (389069003).

891112053 is a wasteful number, since it uses less digits than its factorization.

891112053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11364.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 891112053 is about 29851.5000125622. The cubic root of 891112053 is about 962.3006355620.

The spelling of 891112053 in words is "eight hundred ninety-one million, one hundred twelve thousand, fifty-three".