222405555 has 16 divisors (see below), whose sum is σ = 360138240. Its totient is φ = 117186528.

The previous prime is 222405541. The next prime is 222405613. The reversal of 222405555 is 555504222.

222405555 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 222405555 - 2⁴ = 222405539 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 88075 + ... + 90564.

It is an arithmetic number, because the mean of its divisors is an integer number (22508640).

Almost surely, 2^222405555 is an apocalyptic number.

222405555 is a deficient number, since it is larger than the sum of its proper divisors (137732685).

222405555 is a wasteful number, since it uses less digits than its factorization.

222405555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178730.

The product of its (nonzero) digits is 20000, while the sum is 30.

The square root of 222405555 is about 14913.2677505636. The cubic root of 222405555 is about 605.8733873750.

Adding to 222405555 its reverse (555504222), we get a palindrome (777909777).

The spelling of 222405555 in words is "two hundred twenty-two million, four hundred five thousand, five hundred fifty-five".