42553636250 has 20 divisors (see below), whose sum is σ = 79762538130. Its totient is φ = 17021454000.

The previous prime is 42553636199. The next prime is 42553636259. The reversal of 42553636250 is 5263635524.

It can be written as a sum of positive squares in 5 ways, for example, as 394459321 + 42159176929 = 19861^2 + 205327^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 42553636198 and 42553636207.

It is not an unprimeable number, because it can be changed into a prime (42553636259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 17020205 + ... + 17022704.

Almost surely, 2^42553636250 is an apocalyptic number.

42553636250 is a deficient number, since it is larger than the sum of its proper divisors (37208901880).

42553636250 is an equidigital number, since it uses as much as digits as its factorization.

42553636250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34042931 (or 34042916 counting only the distinct ones).

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 42553636250 in words is "forty-two billion, five hundred fifty-three million, six hundred thirty-six thousand, two hundred fifty".