2255285920 has 48 divisors (see below), whose sum is σ = 5511852360. Its totient is φ = 871005184.

The previous prime is 2255285911. The next prime is 2255285927. The reversal of 2255285920 is 295825522.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2028241296 + 227044624 = 45036^2 + 15068^2 .

It is a Harshad number since it is a multiple of its sum of digits (40).

It is not an unprimeable number, because it can be changed into a prime (2255285927) 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, 238387 + ... + 247666.

Almost surely, 2^2255285920 is an apocalyptic number.

2255285920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255285920 is an abundant number, since it is smaller than the sum of its proper divisors (3256566440).

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

2255285920 is a wasteful number, since it uses less digits than its factorization.

2255285920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486097 (or 486089 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 40.

The square root of 2255285920 is about 47489.8507051770. The cubic root of 2255285920 is about 1311.3960448963.

The spelling of 2255285920 in words is "two billion, two hundred fifty-five million, two hundred eighty-five thousand, nine hundred twenty".