53538335186850 has 72 divisors (see below), whose sum is σ = 144584943985092. Its totient is φ = 14202915840000.

The previous prime is 53538335186839. The next prime is 53538335186851. The reversal of 53538335186850 is 5868153383535.

It is a happy number.

53538335186850 is a `hidden beast` number, since 5 + 3 + 5 + 3 + 8 + 3 + 3 + 518 + 68 + 50 = 666.

It can be written as a sum of positive squares in 6 ways, for example, as 1058699002761 + 52479636184089 = 1028931^2 + 7244283^2 .

It is not an unprimeable number, because it can be changed into a prime (53538335186851) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 308136151 + ... + 308309850.

Almost surely, 2^{53538335186850} is an apocalyptic number.

53538335186850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53538335186850 is an abundant number, since it is smaller than the sum of its proper divisors (91046608798242).

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

53538335186850 is a wasteful number, since it uses less digits than its factorization.

53538335186850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616446212 (or 616446204 counting only the distinct ones).

The product of its (nonzero) digits is 155520000, while the sum is 63.

The spelling of 53538335186850 in words is "fifty-three trillion, five hundred thirty-eight billion, three hundred thirty-five million, one hundred eighty-six thousand, eight hundred fifty".