55555626222 has 32 divisors (see below), whose sum is σ = 123522118560. Its totient is φ = 18508766400.

The previous prime is 55555626173. The next prime is 55555626229. The reversal of 55555626222 is 22262655555.

55555626222 is a `hidden beast` number, since 5 + 5 + 5 + 5 + 562 + 62 + 22 = 666.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55555626229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 167943 + ... + 373250.

It is an arithmetic number, because the mean of its divisors is an integer number (3860066205).

Almost surely, 2^55555626222 is an apocalyptic number.

55555626222 is an abundant number, since it is smaller than the sum of its proper divisors (67966492338).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55555626222 is a wasteful number, since it uses less digits than its factorization.

55555626222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 543105 (or 543099 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The spelling of 55555626222 in words is "fifty-five billion, five hundred fifty-five million, six hundred twenty-six thousand, two hundred twenty-two".