50665655221325 has 48 divisors (see below), whose sum is σ = 66308856034512. Its totient is φ = 38362844160000.

The previous prime is 50665655221303. The next prime is 50665655221331. The reversal of 50665655221325 is 52312255656605.

It can be written as a sum of positive squares in 24 ways, for example, as 45701020624009 + 4964634597316 = 6760253^2 + 2228146^2 .

It is a de Polignac number, because none of the positive numbers 2^k-50665655221325 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 985856 + ... + 10114505.

It is an arithmetic number, because the mean of its divisors is an integer number (1381434500719).

Almost surely, 2^{50665655221325} is an apocalyptic number.

It is an amenable number.

50665655221325 is a deficient number, since it is larger than the sum of its proper divisors (15643200813187).

50665655221325 is a wasteful number, since it uses less digits than its factorization.

50665655221325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11100546 (or 11100541 counting only the distinct ones).

The product of its (nonzero) digits is 16200000, while the sum is 53.

The spelling of 50665655221325 in words is "fifty trillion, six hundred sixty-five billion, six hundred fifty-five million, two hundred twenty-one thousand, three hundred twenty-five".