1089235563 has 32 divisors (see below), whose sum is σ = 1661755200. Its totient is φ = 629669376.

The previous prime is 1089235559. The next prime is 1089235571. The reversal of 1089235563 is 3655329801.

It is not a de Polignac number, because 1089235563 - 2² = 1089235559 is a prime.

It is a super-2 number, since 2×1089235563² = 2372868223407853938, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1089235573) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28833 + ... + 54861.

It is an arithmetic number, because the mean of its divisors is an integer number (51929850).

Almost surely, 2^1089235563 is an apocalyptic number.

1089235563 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1089235563 is a deficient number, since it is larger than the sum of its proper divisors (572519637).

1089235563 is a wasteful number, since it uses less digits than its factorization.

1089235563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26111.

The product of its (nonzero) digits is 194400, while the sum is 42.

The square root of 1089235563 is about 33003.5689433734. The cubic root of 1089235563 is about 1028.9018248089.

The spelling of 1089235563 in words is "one billion, eighty-nine million, two hundred thirty-five thousand, five hundred sixty-three".