2255123340 has 36 divisors (see below), whose sum is σ = 6840541344. Its totient is φ = 601366176.

The previous prime is 2255123329. The next prime is 2255123359. The reversal of 2255123340 is 433215522.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×2255123340² = 10171162557225511200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6264052 + ... + 6264411.

Almost surely, 2^2255123340 is an apocalyptic number.

2255123340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2255123340 is an abundant number, since it is smaller than the sum of its proper divisors (4585418004).

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

2255123340 is a wasteful number, since it uses less digits than its factorization.

2255123340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12528478 (or 12528473 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The square root of 2255123340 is about 47488.1389401606. The cubic root of 2255123340 is about 1311.3645319825.

Adding to 2255123340 its reverse (433215522), we get a palindrome (2688338862).

The spelling of 2255123340 in words is "two billion, two hundred fifty-five million, one hundred twenty-three thousand, three hundred forty".