247052266 has 4 divisors (see below), whose sum is σ = 370578402. Its totient is φ = 123526132.

The previous prime is 247052263. The next prime is 247052303. The reversal of 247052266 is 662250742.

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

It can be written as a sum of positive squares in only one way, i.e., 234243025 + 12809241 = 15305^2 + 3579^2 .

It is a super-2 number, since 2×247052266² = 122069644271469512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (247052263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61763065 + ... + 61763068.

Almost surely, 2^247052266 is an apocalyptic number.

247052266 is a deficient number, since it is larger than the sum of its proper divisors (123526136).

247052266 is a wasteful number, since it uses less digits than its factorization.

247052266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123526135.

The product of its (nonzero) digits is 40320, while the sum is 34.

The square root of 247052266 is about 15717.8963605185. The cubic root of 247052266 is about 627.4747880645.

The spelling of 247052266 in words is "two hundred forty-seven million, fifty-two thousand, two hundred sixty-six".