55222559 has 6 divisors (see below), whose sum is σ = 64238544. Its totient is φ = 47333580.

The previous prime is 55222553. The next prime is 55222567. The reversal of 55222559 is 95522255.

It is a happy number.

55222559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55222559 - 2¹² = 55218463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222553) 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 5 ways as a sum of consecutive naturals, for example, 563447 + ... + 563544.

It is an arithmetic number, because the mean of its divisors is an integer number (10706424).

Almost surely, 2^55222559 is an apocalyptic number.

55222559 is a deficient number, since it is larger than the sum of its proper divisors (9015985).

55222559 is a wasteful number, since it uses less digits than its factorization.

55222559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1127005 (or 1126998 counting only the distinct ones).

The product of its digits is 45000, while the sum is 35.

The square root of 55222559 is about 7431.1882629900. The cubic root of 55222559 is about 380.8075140890.

The spelling of 55222559 in words is "fifty-five million, two hundred twenty-two thousand, five hundred fifty-nine".