1055692889 has 4 divisors (see below), whose sum is σ = 1055766756. Its totient is φ = 1055619024.

The previous prime is 1055692867. The next prime is 1055692909. The reversal of 1055692889 is 9882965501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 282408025 + 773284864 = 16805^2 + 27808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1055692889 - 2⁸ = 1055692633 is a prime.

It is a super-2 number, since 2×1055692889² = 2228974951770332642, which contains 22 as substring.

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 1055692889.

It is not an unprimeable number, because it can be changed into a prime (1055695889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7874 + ... + 46619.

It is an arithmetic number, because the mean of its divisors is an integer number (263941689).

Almost surely, 2^1055692889 is an apocalyptic number.

It is an amenable number.

1055692889 is a deficient number, since it is larger than the sum of its proper divisors (73867).

1055692889 is an equidigital number, since it uses as much as digits as its factorization.

1055692889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73866.

The product of its (nonzero) digits is 1555200, while the sum is 53.

The square root of 1055692889 is about 32491.4279310713. The cubic root of 1055692889 is about 1018.2299459459.

The spelling of 1055692889 in words is "one billion, fifty-five million, six hundred ninety-two thousand, eight hundred eighty-nine".