1920568255 has 8 divisors (see below), whose sum is σ = 2307973824. Its totient is φ = 1534260000.

The previous prime is 1920568253. The next prime is 1920568259. The reversal of 1920568255 is 5528650291.

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

It is not a de Polignac number, because 1920568255 - 2¹ = 1920568253 is a prime.

It is a super-2 number, since 2×1920568255² = 7377164844227490050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1920568253) 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, 270471 + ... + 277480.

It is an arithmetic number, because the mean of its divisors is an integer number (288496728).

Almost surely, 2^1920568255 is an apocalyptic number.

1920568255 is a deficient number, since it is larger than the sum of its proper divisors (387405569).

1920568255 is an equidigital number, since it uses as much as digits as its factorization.

1920568255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 548657.

The product of its (nonzero) digits is 216000, while the sum is 43.

The square root of 1920568255 is about 43824.2884140747. The cubic root of 1920568255 is about 1243.0156083705.

The spelling of 1920568255 in words is "one billion, nine hundred twenty million, five hundred sixty-eight thousand, two hundred fifty-five".