55995289 has 9 divisors (see below), whose sum is σ = 65198367. Its totient is φ = 47951064.

The previous prime is 55995281. The next prime is 55995301. The reversal of 55995289 is 98259955.

It is a happy number.

The square root of 55995289 is 7483.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 26183689 + 29811600 = 5117^2 + 5460^2 .

It is not a de Polignac number, because 55995289 - 2³ = 55995281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55995281) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 51847 + ... + 52915.

It is an arithmetic number, because the mean of its divisors is an integer number (7244263).

Almost surely, 2^55995289 is an apocalyptic number.

55995289 is the 7483-rd square number.

55995289 is the 3742-nd centered octagonal number.

It is an amenable number.

55995289 is a deficient number, since it is larger than the sum of its proper divisors (9203078).

55995289 is an frugal number, since it uses more digits than its factorization.

55995289 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2152 (or 1076 counting only the distinct ones).

The product of its digits is 1458000, while the sum is 52.

The cubic root of 55995289 is about 382.5755078979.

The spelling of 55995289 in words is "fifty-five million, nine hundred ninety-five thousand, two hundred eighty-nine".