2255403140 has 48 divisors (see below), whose sum is σ = 4903234560. Its totient is φ = 870541440.

The previous prime is 2255403121. The next prime is 2255403149. The reversal of 2255403140 is 413045522.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (2255403149) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 217514 + ... + 227646.

It is an arithmetic number, because the mean of its divisors is an integer number (102150720).

Almost surely, 2^2255403140 is an apocalyptic number.

2255403140 is a gapful number since it is divisible by the number (20) 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 2255403140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2451617280).

2255403140 is an abundant number, since it is smaller than the sum of its proper divisors (2647831420).

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

2255403140 is a wasteful number, since it uses less digits than its factorization.

2255403140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10532 (or 10530 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 2255403140 is about 47491.0848475796. The cubic root of 2255403140 is about 1311.4187647327.

Adding to 2255403140 its reverse (413045522), we get a palindrome (2668448662).

The spelling of 2255403140 in words is "two billion, two hundred fifty-five million, four hundred three thousand, one hundred forty".