289851055 has 12 divisors (see below), whose sum is σ = 376635960. Its totient is φ = 214043232.

The previous prime is 289851053. The next prime is 289851101. The reversal of 289851055 is 550158982.

It is not a de Polignac number, because 289851055 - 2¹ = 289851053 is a prime.

It is a super-2 number, since 2×289851055² = 168027268169226050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (289851053) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 170665 + ... + 172354.

It is an arithmetic number, because the mean of its divisors is an integer number (31386330).

Almost surely, 2^289851055 is an apocalyptic number.

289851055 is a deficient number, since it is larger than the sum of its proper divisors (86784905).

289851055 is a wasteful number, since it uses less digits than its factorization.

289851055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343050 (or 343037 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 43.

The square root of 289851055 is about 17025.0126284828. The cubic root of 289851055 is about 661.7972555419.

The spelling of 289851055 in words is "two hundred eighty-nine million, eight hundred fifty-one thousand, fifty-five".