248220950479 has 4 divisors (see below), whose sum is σ = 248226794584. Its totient is φ = 248215106376.

The previous prime is 248220950381. The next prime is 248220950491. The reversal of 248220950479 is 974059022842.

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 248220950479 - 2¹⁹ = 248220426191 is a prime.

It is a super-2 number, since 2×248220950479² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (248220950779) 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, 2857872 + ... + 2943445.

It is an arithmetic number, because the mean of its divisors is an integer number (62056698646).

Almost surely, 2^248220950479 is an apocalyptic number.

248220950479 is a deficient number, since it is larger than the sum of its proper divisors (5844105).

248220950479 is an equidigital number, since it uses as much as digits as its factorization.

248220950479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5844104.

The product of its (nonzero) digits is 2903040, while the sum is 52.

The spelling of 248220950479 in words is "two hundred forty-eight billion, two hundred twenty million, nine hundred fifty thousand, four hundred seventy-nine".