55806030289 has 9 divisors (see below), whose sum is σ = 58343553289. Its totient is φ = 53374484020.

The previous prime is 55806030283. The next prime is 55806030299. The reversal of 55806030289 is 98203060855.

The square root of 55806030289 is 236233.

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

It is not a de Polignac number, because 55806030289 - 2¹⁵ = 55805997521 is a prime.

It is a super-2 number, since 2×55806030289² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55806030283) 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, 5428224 + ... + 5438494.

Almost surely, 2^55806030289 is an apocalyptic number.

55806030289 is the 236233-rd square number.

55806030289 is the 118117-th centered octagonal number.

It is an amenable number.

55806030289 is a deficient number, since it is larger than the sum of its proper divisors (2537523000).

55806030289 is an frugal number, since it uses more digits than its factorization.

55806030289 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20588 (or 10294 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 46.

The spelling of 55806030289 in words is "fifty-five billion, eight hundred six million, thirty thousand, two hundred eighty-nine".