50551306447 has 4 divisors (see below), whose sum is σ = 52749189360. Its totient is φ = 48353423536.

The previous prime is 50551306439. The next prime is 50551306451. The reversal of 50551306447 is 74460315505.

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

It is a cyclic number.

It is not a de Polignac number, because 50551306447 - 2³ = 50551306439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50551303447) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1098941422 + ... + 1098941467.

It is an arithmetic number, because the mean of its divisors is an integer number (13187297340).

Almost surely, 2^50551306447 is an apocalyptic number.

50551306447 is a deficient number, since it is larger than the sum of its proper divisors (2197882913).

50551306447 is a wasteful number, since it uses less digits than its factorization.

50551306447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2197882912.

The product of its (nonzero) digits is 252000, while the sum is 40.

The spelling of 50551306447 in words is "fifty billion, five hundred fifty-one million, three hundred six thousand, four hundred forty-seven".