247020225 has 12 divisors (see below), whose sum is σ = 408406896. Its totient is φ = 131744080.

The previous prime is 247020209. The next prime is 247020233. The reversal of 247020225 is 522020742.

It is not a de Polignac number, because 247020225 - 2⁴ = 247020209 is a prime.

It is a super-2 number, since 2×247020225² = 122037983118101250, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 247020195 and 247020204.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1646727 + ... + 1646876.

It is an arithmetic number, because the mean of its divisors is an integer number (34033908).

Almost surely, 2^247020225 is an apocalyptic number.

247020225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247020225 is a deficient number, since it is larger than the sum of its proper divisors (161386671).

247020225 is a wasteful number, since it uses less digits than its factorization.

247020225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3293616 (or 3293611 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 24.

The square root of 247020225 is about 15716.8770752971. The cubic root of 247020225 is about 627.4476604864.

Adding to 247020225 its reverse (522020742), we get a palindrome (769040967).

The spelling of 247020225 in words is "two hundred forty-seven million, twenty thousand, two hundred twenty-five".