550055047 has 4 divisors (see below), whose sum is σ = 550217080. Its totient is φ = 549893016.

The previous prime is 550055039. The next prime is 550055063. The reversal of 550055047 is 740550055.

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 550055047 - 2³ = 550055039 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 (550055017) 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, 75813 + ... + 82750.

It is an arithmetic number, because the mean of its divisors is an integer number (137554270).

Almost surely, 2^550055047 is an apocalyptic number.

550055047 is a deficient number, since it is larger than the sum of its proper divisors (162033).

550055047 is a wasteful number, since it uses less digits than its factorization.

550055047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162032.

The product of its (nonzero) digits is 17500, while the sum is 31.

The square root of 550055047 is about 23453.2523757367. The cubic root of 550055047 is about 819.3486037360.

The spelling of 550055047 in words is "five hundred fifty million, fifty-five thousand, forty-seven".