23553212200 has 72 divisors (see below), whose sum is σ = 63701851950. Its totient is φ = 8075383680.

The previous prime is 23553212191. The next prime is 23553212251. The reversal of 23553212200 is 221235532.

It can be written as a sum of positive squares in 3 ways, for example, as 12025754244 + 11527457956 = 109662^2 + 107366^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 1191895 + ... + 1211494.

Almost surely, 2^23553212200 is an apocalyptic number.

23553212200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23553212200 is an abundant number, since it is smaller than the sum of its proper divisors (40148639750).

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

23553212200 is a wasteful number, since it uses less digits than its factorization.

23553212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403419 (or 2403403 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 23553212200 its reverse (221235532), we get a palindrome (23774447732).

The spelling of 23553212200 in words is "twenty-three billion, five hundred fifty-three million, two hundred twelve thousand, two hundred".