1720224055 has 8 divisors (see below), whose sum is σ = 2251929744. Its totient is φ = 1251072000.

The previous prime is 1720224047. The next prime is 1720224061. The reversal of 1720224055 is 5504220271.

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

It is not a de Polignac number, because 1720224055 - 2³ = 1720224047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15638346 + ... + 15638455.

It is an arithmetic number, because the mean of its divisors is an integer number (281491218).

Almost surely, 2^1720224055 is an apocalyptic number.

1720224055 is a deficient number, since it is larger than the sum of its proper divisors (531705689).

1720224055 is a wasteful number, since it uses less digits than its factorization.

1720224055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31276817.

The product of its (nonzero) digits is 5600, while the sum is 28.

The square root of 1720224055 is about 41475.5838415808. The cubic root of 1720224055 is about 1198.1973059995.

The spelling of 1720224055 in words is "one billion, seven hundred twenty million, two hundred twenty-four thousand, fifty-five".