22225005525055 has 4 divisors (see below), whose sum is σ = 26670006630072. Its totient is φ = 17780004420040.

The previous prime is 22225005525053. The next prime is 22225005525061. The reversal of 22225005525055 is 55052550052222.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 22225005525055 - 2¹ = 22225005525053 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22225005524999 and 22225005525017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22225005525053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2222500552501 + ... + 2222500552510.

It is an arithmetic number, because the mean of its divisors is an integer number (6667501657518).

Almost surely, 2^{22225005525055} is an apocalyptic number.

22225005525055 is a deficient number, since it is larger than the sum of its proper divisors (4445001105017).

22225005525055 is an equidigital number, since it uses as much as digits as its factorization.

22225005525055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4445001105016.

The product of its (nonzero) digits is 500000, while the sum is 40.

Adding to 22225005525055 its reverse (55052550052222), we get a palindrome (77277555577277).

The spelling of 22225005525055 in words is "twenty-two trillion, two hundred twenty-five billion, five million, five hundred twenty-five thousand, fifty-five".