55565211 has 8 divisors (see below), whose sum is σ = 79786000. Its totient is φ = 34193952.

The previous prime is 55565183. The next prime is 55565219. The reversal of 55565211 is 11256555.

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

It is not a de Polignac number, because 55565211 - 2¹⁷ = 55434139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55565219) 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, 712336 + ... + 712413.

It is an arithmetic number, because the mean of its divisors is an integer number (9973250).

Almost surely, 2^55565211 is an apocalyptic number.

55565211 is a deficient number, since it is larger than the sum of its proper divisors (24220789).

55565211 is a wasteful number, since it uses less digits than its factorization.

55565211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1424765.

The product of its digits is 7500, while the sum is 30.

The square root of 55565211 is about 7454.2076037631. The cubic root of 55565211 is about 381.5935183535.

The spelling of 55565211 in words is "fifty-five million, five hundred sixty-five thousand, two hundred eleven".