50664998664225 has 243 divisors, whose sum is σ = 100724601303417. Its totient is φ = 24326254656000.

The previous prime is 50664998664211. The next prime is 50664998664277. The reversal of 50664998664225 is 52246689946605.

The square root of 50664998664225 is 7117935.

It is a perfect power (a square), and thus also a powerful number.

50664998664225 is a `hidden beast` number, since 50 + 6 + 6 + 4 + 9 + 98 + 66 + 422 + 5 = 666.

50664998664225 is digitally balanced in base 2 and base 6, because in such bases it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 753995252241 + 49911003411984 = 868329^2 + 7064772^2 .

It is not a de Polignac number, because 50664998664225 - 2¹³ = 50664998656033 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 242 ways as a sum of consecutive naturals, for example, 210228210105 + ... + 210228210345.

Almost surely, 2^{50664998664225} is an apocalyptic number.

50664998664225 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

50664998664225 is the 7117935-th square number.

50664998664225 is the 3558968-th centered octagonal number.

It is an amenable number.

50664998664225 is a deficient number, since it is larger than the sum of its proper divisors (50059602639192).

50664998664225 is a wasteful number, since it uses less digits than its factorization.

50664998664225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 878 (or 439 counting only the distinct ones).

The product of its (nonzero) digits is 1343692800, while the sum is 72.

The spelling of 50664998664225 in words is "fifty trillion, six hundred sixty-four billion, nine hundred ninety-eight million, six hundred sixty-four thousand, two hundred twenty-five".