12250550898 has 24 divisors (see below), whose sum is σ = 26548943148. Its totient is φ = 4082581152.

The previous prime is 12250550887. The next prime is 12250550899. The reversal of 12250550898 is 89805505221.

It is a happy number.

12250550898 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 0 + 550 + 8 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 12101540049 + 149010849 = 110007^2 + 12207^2 .

It is not an unprimeable number, because it can be changed into a prime (12250550899) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5136 + ... + 156612.

Almost surely, 2^12250550898 is an apocalyptic number.

12250550898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

12250550898 is an abundant number, since it is smaller than the sum of its proper divisors (14298392250).

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

12250550898 is a wasteful number, since it uses less digits than its factorization.

12250550898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155978 (or 155975 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 45.

The spelling of 12250550898 in words is "twelve billion, two hundred fifty million, five hundred fifty thousand, eight hundred ninety-eight".