8255545920 has 392 divisors, whose sum is σ = 30196389696. Its totient is φ = 2147668992.

The previous prime is 8255545867. The next prime is 8255545943. The reversal of 8255545920 is 295455528.

8255545920 is a `hidden beast` number, since 8 + 2 + 5 + 5 + 54 + 592 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 10030629 + ... + 10031451.

Almost surely, 2^8255545920 is an apocalyptic number.

8255545920 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8255545920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15098194848).

8255545920 is an abundant number, since it is smaller than the sum of its proper divisors (21940843776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8255545920 is an equidigital number, since it uses as much as digits as its factorization.

8255545920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 901 (or 876 counting only the distinct ones).

The product of its (nonzero) digits is 720000, while the sum is 45.

The square root of 8255545920 is about 90860.0347787739. The cubic root of 8255545920 is about 2021.0726845255.

The spelling of 8255545920 in words is "eight billion, two hundred fifty-five million, five hundred forty-five thousand, nine hundred twenty".