55989271 has 4 divisors (see below), whose sum is σ = 60296152. Its totient is φ = 51682392.

The previous prime is 55989259. The next prime is 55989301. The reversal of 55989271 is 17298955.

55989271 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 17298955 = 5 ⋅3459791.

It is a cyclic number.

It is not a de Polignac number, because 55989271 - 2⁵ = 55989239 is a prime.

It is a super-2 number, since 2×55989271² = 6269596934222882, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55989071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2153421 + ... + 2153446.

It is an arithmetic number, because the mean of its divisors is an integer number (15074038).

Almost surely, 2^55989271 is an apocalyptic number.

55989271 is a deficient number, since it is larger than the sum of its proper divisors (4306881).

55989271 is a wasteful number, since it uses less digits than its factorization.

55989271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306880.

The product of its digits is 226800, while the sum is 46.

The square root of 55989271 is about 7482.5978777427. The cubic root of 55989271 is about 382.5618018527.

The spelling of 55989271 in words is "fifty-five million, nine hundred eighty-nine thousand, two hundred seventy-one".