50021345254505 has 4 divisors (see below), whose sum is σ = 60025614305412. Its totient is φ = 40017076203600.

The previous prime is 50021345254501. The next prime is 50021345254547. The reversal of 50021345254505 is 50545254312005.

50021345254505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6302549998144 + 43718795256361 = 2510488^2 + 6612019^2 .

It is not a de Polignac number, because 50021345254505 - 2² = 50021345254501 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50021345254501) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5002134525446 + ... + 5002134525455.

It is an arithmetic number, because the mean of its divisors is an integer number (15006403576353).

Almost surely, 2^{50021345254505} is an apocalyptic number.

It is an amenable number.

50021345254505 is a deficient number, since it is larger than the sum of its proper divisors (10004269050907).

50021345254505 is a wasteful number, since it uses less digits than its factorization.

50021345254505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10004269050906.

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 50021345254505 in words is "fifty trillion, twenty-one billion, three hundred forty-five million, two hundred fifty-four thousand, five hundred five".