2303505256 has 64 divisors (see below), whose sum is σ = 4749252480. Its totient is φ = 1040981760.

The previous prime is 2303505229. The next prime is 2303505271. The reversal of 2303505256 is 6525053032.

It is a super-2 number, since 2×2303505256² = 10612272928839251072, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1158295 + ... + 1160281.

It is an arithmetic number, because the mean of its divisors is an integer number (74207070).

Almost surely, 2^2303505256 is an apocalyptic number.

2303505256 is a gapful number since it is divisible by the number (26) 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 2303505256, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2374626240).

2303505256 is an abundant number, since it is smaller than the sum of its proper divisors (2445747224).

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

2303505256 is a wasteful number, since it uses less digits than its factorization.

2303505256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2234 (or 2230 counting only the distinct ones).

The product of its (nonzero) digits is 27000, while the sum is 31.

The square root of 2303505256 is about 47994.8461399763. The cubic root of 2303505256 is about 1320.6763552501.

Adding to 2303505256 its reverse (6525053032), we get a palindrome (8828558288).

The spelling of 2303505256 in words is "two billion, three hundred three million, five hundred five thousand, two hundred fifty-six".