247055222 has 4 divisors (see below), whose sum is σ = 370582836. Its totient is φ = 123527610.

The previous prime is 247055219. The next prime is 247055269. The reversal of 247055222 is 222550742.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×247055222² = 122072565434938568, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 61763804 + ... + 61763807.

It is an arithmetic number, because the mean of its divisors is an integer number (92645709).

Almost surely, 2^247055222 is an apocalyptic number.

247055222 is a deficient number, since it is larger than the sum of its proper divisors (123527614).

247055222 is a wasteful number, since it uses less digits than its factorization.

247055222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123527613.

The product of its (nonzero) digits is 11200, while the sum is 29.

The square root of 247055222 is about 15717.9903931769. The cubic root of 247055222 is about 627.4772906497.

The spelling of 247055222 in words is "two hundred forty-seven million, fifty-five thousand, two hundred twenty-two".