55222565505 has 32 divisors (see below), whose sum is σ = 89040556800. Its totient is φ = 29224293120.

The previous prime is 55222565491. The next prime is 55222565509. The reversal of 55222565505 is 50556522255.

55222565505 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 55222565505 - 2⁹ = 55222564993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55222565509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2251860 + ... + 2276250.

It is an arithmetic number, because the mean of its divisors is an integer number (2782517400).

Almost surely, 2^55222565505 is an apocalyptic number.

It is an amenable number.

55222565505 is a deficient number, since it is larger than the sum of its proper divisors (33817991295).

55222565505 is a wasteful number, since it uses less digits than its factorization.

55222565505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25561.

The product of its (nonzero) digits is 750000, while the sum is 42.

The spelling of 55222565505 in words is "fifty-five billion, two hundred twenty-two million, five hundred sixty-five thousand, five hundred five".