2303155560 has 64 divisors (see below), whose sum is σ = 6929167680. Its totient is φ = 612423680.

The previous prime is 2303155537. The next prime is 2303155567. The reversal of 2303155560 is 655513032.

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

It is not an unprimeable number, because it can be changed into a prime (2303155567) 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, 15175 + ... + 69545.

It is an arithmetic number, because the mean of its divisors is an integer number (108268245).

Almost surely, 2^2303155560 is an apocalyptic number.

2303155560 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 2303155560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3464583840).

2303155560 is an abundant number, since it is smaller than the sum of its proper divisors (4626012120).

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

2303155560 is a wasteful number, since it uses less digits than its factorization.

2303155560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54738 (or 54734 counting only the distinct ones).

The product of its (nonzero) digits is 13500, while the sum is 30.

The square root of 2303155560 is about 47991.2029438730. The cubic root of 2303155560 is about 1320.6095210764.

Adding to 2303155560 its reverse (655513032), we get a palindrome (2958668592).

The spelling of 2303155560 in words is "two billion, three hundred three million, one hundred fifty-five thousand, five hundred sixty".