55565229 has 16 divisors (see below), whose sum is σ = 75081600. Its totient is φ = 36550080.

The previous prime is 55565227. The next prime is 55565243. The reversal of 55565229 is 92256555.

It is not a de Polignac number, because 55565229 - 2¹ = 55565227 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55565227) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87744 + ... + 88374.

It is an arithmetic number, because the mean of its divisors is an integer number (4692600).

Almost surely, 2^55565229 is an apocalyptic number.

It is an amenable number.

55565229 is a deficient number, since it is larger than the sum of its proper divisors (19516371).

55565229 is a wasteful number, since it uses less digits than its factorization.

55565229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 980.

The product of its digits is 135000, while the sum is 39.

The square root of 55565229 is about 7454.2088111348. The cubic root of 55565229 is about 381.5935595584.

The spelling of 55565229 in words is "fifty-five million, five hundred sixty-five thousand, two hundred twenty-nine".