55186850000 has 60 divisors (see below), whose sum is σ = 133647219468. Its totient is φ = 22074720000.

The previous prime is 55186849997. The next prime is 55186850011. The reversal of 55186850000 is 5868155.

It can be written as a sum of positive squares in 6 ways, for example, as 44426522176 + 10760327824 = 210776^2 + 103732^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 501869 + ... + 601868.

Almost surely, 2^55186850000 is an apocalyptic number.

55186850000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55186850000 is an abundant number, since it is smaller than the sum of its proper divisors (78460369468).

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

55186850000 is an equidigital number, since it uses as much as digits as its factorization.

55186850000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103770 (or 1103744 counting only the distinct ones).

The product of its (nonzero) digits is 48000, while the sum is 38.

The spelling of 55186850000 in words is "fifty-five billion, one hundred eighty-six million, eight hundred fifty thousand".