53731818650 has 12 divisors (see below), whose sum is σ = 99941182782. Its totient is φ = 21492727440.

The previous prime is 53731818649. The next prime is 53731818653. The reversal of 53731818650 is 5681813735.

It can be written as a sum of positive squares in 3 ways, for example, as 20675851681 + 33055966969 = 143791^2 + 181813^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 53731818595 and 53731818604.

It is not an unprimeable number, because it can be changed into a prime (53731818653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 537318137 + ... + 537318236.

Almost surely, 2^53731818650 is an apocalyptic number.

53731818650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

53731818650 is a deficient number, since it is larger than the sum of its proper divisors (46209364132).

53731818650 is a wasteful number, since it uses less digits than its factorization.

53731818650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1074636385 (or 1074636380 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 53731818650 in words is "fifty-three billion, seven hundred thirty-one million, eight hundred eighteen thousand, six hundred fifty".