55222218838367 has 4 divisors (see below), whose sum is σ = 63111107243856. Its totient is φ = 47333330432880.

The previous prime is 55222218838343. The next prime is 55222218838393. The reversal of 55222218838367 is 76383881222255.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 55222218838367 - 2¹⁸ = 55222218576223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55222218835367) 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, 3944444202734 + ... + 3944444202747.

It is an arithmetic number, because the mean of its divisors is an integer number (15777776810964).

Almost surely, 2^{55222218838367} is an apocalyptic number.

55222218838367 is a deficient number, since it is larger than the sum of its proper divisors (7888888405489).

55222218838367 is an equidigital number, since it uses as much as digits as its factorization.

55222218838367 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7888888405488.

The product of its digits is 77414400, while the sum is 62.

The spelling of 55222218838367 in words is "fifty-five trillion, two hundred twenty-two billion, two hundred eighteen million, eight hundred thirty-eight thousand, three hundred sixty-seven".