55711589 has 4 divisors (see below), whose sum is σ = 58133856. Its totient is φ = 53289324.

The previous prime is 55711561. The next prime is 55711609. The reversal of 55711589 is 98511755.

55711589 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 a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 55711589 - 2¹² = 55707493 is a prime.

It is a super-2 number, since 2×55711589² = 6207562297809842, 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 (55711489) 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, 1211099 + ... + 1211144.

It is an arithmetic number, because the mean of its divisors is an integer number (14533464).

Almost surely, 2^55711589 is an apocalyptic number.

It is an amenable number.

55711589 is a deficient number, since it is larger than the sum of its proper divisors (2422267).

55711589 is a wasteful number, since it uses less digits than its factorization.

55711589 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2422266.

The product of its digits is 63000, while the sum is 41.

The square root of 55711589 is about 7464.0196275197. The cubic root of 55711589 is about 381.9283076811.

The spelling of 55711589 in words is "fifty-five million, seven hundred eleven thousand, five hundred eighty-nine".