1020223555 has 8 divisors (see below), whose sum is σ = 1318442832. Its totient is φ = 753395808.

The previous prime is 1020223517. The next prime is 1020223573. The reversal of 1020223555 is 5553220201.

It is a happy number.

1020223555 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1020223555 - 2¹⁹ = 1019699267 is a prime.

It is a super-2 number, since 2×1020223555² = 2081712204353676050, which contains 22 as substring.

It is a Duffinian 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, 7847809 + ... + 7847938.

It is an arithmetic number, because the mean of its divisors is an integer number (164805354).

Almost surely, 2^1020223555 is an apocalyptic number.

1020223555 is a deficient number, since it is larger than the sum of its proper divisors (298219277).

1020223555 is a wasteful number, since it uses less digits than its factorization.

1020223555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15695765.

The product of its (nonzero) digits is 3000, while the sum is 25.

The square root of 1020223555 is about 31940.9385428794. The cubic root of 1020223555 is about 1006.6962452142.

Adding to 1020223555 its reverse (5553220201), we get a palindrome (6573443756).

The spelling of 1020223555 in words is "one billion, twenty million, two hundred twenty-three thousand, five hundred fifty-five".