55000289 has 8 divisors (see below), whose sum is σ = 55554408. Its totient is φ = 54449280.

The previous prime is 55000277. The next prime is 55000301. The reversal of 55000289 is 98200055.

It is an interprime number because it is at equal distance from previous prime (55000277) and next prime (55000301).

It can be written as a sum of positive squares in 4 ways, for example, as 3045025 + 51955264 = 1745^2 + 7208^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55000289 - 2¹⁶ = 54934753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55000259) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49589 + ... + 50685.

It is an arithmetic number, because the mean of its divisors is an integer number (6944301).

Almost surely, 2^55000289 is an apocalyptic number.

It is an amenable number.

55000289 is a deficient number, since it is larger than the sum of its proper divisors (554119).

55000289 is a wasteful number, since it uses less digits than its factorization.

55000289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1555.

The product of its (nonzero) digits is 3600, while the sum is 29.

The square root of 55000289 is about 7416.2179714461. The cubic root of 55000289 is about 380.2959121679.

The spelling of 55000289 in words is "fifty-five million, two hundred eighty-nine", and thus it is an aban number.