163550003 has 8 divisors (see below), whose sum is σ = 166016928. Its totient is φ = 161089344.

The previous prime is 163549957. The next prime is 163550087. The reversal of 163550003 is 300055361.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 163550003 - 2²² = 159355699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163550503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87626 + ... + 89472.

It is an arithmetic number, because the mean of its divisors is an integer number (20752116).

Almost surely, 2^163550003 is an apocalyptic number.

163550003 is a deficient number, since it is larger than the sum of its proper divisors (2466925).

163550003 is a wasteful number, since it uses less digits than its factorization.

163550003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3133.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 163550003 is about 12788.6669750995. Note that the first 3 decimals coincide. The cubic root of 163550003 is about 546.8692685897.

The spelling of 163550003 in words is "one hundred sixty-three million, five hundred fifty thousand, three".