2255223540 has 48 divisors (see below), whose sum is σ = 6317676288. Its totient is φ = 601102464.

The previous prime is 2255223539. The next prime is 2255223547. The reversal of 2255223540 is 453225522.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 2255223498 and 2255223507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2255223547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135094 + ... + 150866.

It is an arithmetic number, because the mean of its divisors is an integer number (131618256).

Almost surely, 2^2255223540 is an apocalyptic number.

2255223540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255223540 is an abundant number, since it is smaller than the sum of its proper divisors (4062452748).

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

2255223540 is a wasteful number, since it uses less digits than its factorization.

2255223540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18168 (or 18166 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 30.

The square root of 2255223540 is about 47489.1939287245. The cubic root of 2255223540 is about 1311.3839539475.

The spelling of 2255223540 in words is "two billion, two hundred fifty-five million, two hundred twenty-three thousand, five hundred forty".