55012255 has 16 divisors (see below), whose sum is σ = 70092000. Its totient is φ = 41306112.

The previous prime is 55012253. The next prime is 55012261. The reversal of 55012255 is 55221055.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 55012255 - 2¹ = 55012253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55012253) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41767 + ... + 43063.

It is an arithmetic number, because the mean of its divisors is an integer number (4380750).

Almost surely, 2^55012255 is an apocalyptic number.

55012255 is a deficient number, since it is larger than the sum of its proper divisors (15079745).

55012255 is a wasteful number, since it uses less digits than its factorization.

55012255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1818.

The product of its (nonzero) digits is 2500, while the sum is 25.

The square root of 55012255 is about 7417.0246730074. The cubic root of 55012255 is about 380.3234895436.

The spelling of 55012255 in words is "fifty-five million, twelve thousand, two hundred fifty-five".