247055 has 4 divisors (see below), whose sum is σ = 296472. Its totient is φ = 197640.

The previous prime is 247031. The next prime is 247067. The reversal of 247055 is 550742.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 550742 = 2 ⋅275371.

It is a de Polignac number, because none of the positive numbers 2^k-247055 is a prime.

It is a super-2 number, since 2×247055² = 122072346050, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 247055.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 247055.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24701 + ... + 24710.

It is an arithmetic number, because the mean of its divisors is an integer number (74118).

2²⁴⁷⁰⁵⁵ is an apocalyptic number.

247055 is a deficient number, since it is larger than the sum of its proper divisors (49417).

247055 is an equidigital number, since it uses as much as digits as its factorization.

247055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49416.

The product of its (nonzero) digits is 1400, while the sum is 23.

The square root of 247055 is about 497.0462755116. The cubic root of 247055 is about 62.7477102703.

Adding to 247055 its reverse (550742), we get a palindrome (797797).

The spelling of 247055 in words is "two hundred forty-seven thousand, fifty-five".