23550810820 has 48 divisors (see below), whose sum is σ = 50706356400. Its totient is φ = 9182689280.

The previous prime is 23550810769. The next prime is 23550810823. The reversal of 23550810820 is 2801805532.

It can be written as a sum of positive squares in 8 ways, for example, as 1309860864 + 22240949956 = 36192^2 + 149134^2 .

It is not an unprimeable number, because it can be changed into a prime (23550810823) 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, 996096 + ... + 1019464.

It is an arithmetic number, because the mean of its divisors is an integer number (1056382425).

Almost surely, 2^23550810820 is an apocalyptic number.

23550810820 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 23550810820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25353178200).

23550810820 is an abundant number, since it is smaller than the sum of its proper divisors (27155545580).

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

23550810820 is a wasteful number, since it uses less digits than its factorization.

23550810820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24648 (or 24646 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 34.

The spelling of 23550810820 in words is "twenty-three billion, five hundred fifty million, eight hundred ten thousand, eight hundred twenty".