55288205 has 32 divisors (see below), whose sum is σ = 79778304. Its totient is φ = 35963136.

The previous prime is 55288201. The next prime is 55288241. The reversal of 55288205 is 50288255.

55288205 is nontrivially palindromic in base 6.

55288205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 55288205 - 2² = 55288201 is a prime.

It is a super-2 number, since 2×55288205² = 6113571224244050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55288201) 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 31 ways as a sum of consecutive naturals, for example, 139067 + ... + 139463.

It is an arithmetic number, because the mean of its divisors is an integer number (2493072).

Almost surely, 2^55288205 is an apocalyptic number.

It is an amenable number.

55288205 is a deficient number, since it is larger than the sum of its proper divisors (24490099).

55288205 is a wasteful number, since it uses less digits than its factorization.

55288205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605.

The product of its (nonzero) digits is 32000, while the sum is 35.

The square root of 55288205 is about 7435.6038759471. The cubic root of 55288205 is about 380.9583497341.

The spelling of 55288205 in words is "fifty-five million, two hundred eighty-eight thousand, two hundred five".