222181553 has 8 divisors (see below), whose sum is σ = 243034176. Its totient is φ = 201438000.

The previous prime is 222181543. The next prime is 222181591. The reversal of 222181553 is 355181222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 222181553 - 2⁴ = 222181537 is a prime.

It is not an unprimeable number, because it can be changed into a prime (222181513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22973 + ... + 31178.

It is an arithmetic number, because the mean of its divisors is an integer number (30379272).

Almost surely, 2^222181553 is an apocalyptic number.

It is an amenable number.

222181553 is a deficient number, since it is larger than the sum of its proper divisors (20852623).

222181553 is a wasteful number, since it uses less digits than its factorization.

222181553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54535.

The product of its digits is 4800, while the sum is 29.

The square root of 222181553 is about 14905.7557003998. The cubic root of 222181553 is about 605.6699115824.

The spelling of 222181553 in words is "two hundred twenty-two million, one hundred eighty-one thousand, five hundred fifty-three".