248055209 has 4 divisors (see below), whose sum is σ = 250463616. Its totient is φ = 245646804.

The previous prime is 248055191. The next prime is 248055217. The reversal of 248055209 is 902550842.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 248055209 - 2¹⁶ = 247989673 is a prime.

It is a super-4 number, since 4×248055209⁴ (a number of 35 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (248055229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1204049 + ... + 1204254.

It is an arithmetic number, because the mean of its divisors is an integer number (62615904).

Almost surely, 2^248055209 is an apocalyptic number.

It is an amenable number.

248055209 is a deficient number, since it is larger than the sum of its proper divisors (2408407).

248055209 is a wasteful number, since it uses less digits than its factorization.

248055209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2408406.

The product of its (nonzero) digits is 28800, while the sum is 35.

The square root of 248055209 is about 15749.7685379818. The cubic root of 248055209 is about 628.3227486547.

The spelling of 248055209 in words is "two hundred forty-eight million, fifty-five thousand, two hundred nine".