247270225 has 12 divisors (see below), whose sum is σ = 307480320. Its totient is φ = 197258000.

The previous prime is 247270207. The next prime is 247270301. The reversal of 247270225 is 522072742.

It is not a de Polignac number, because 247270225 - 2⁹ = 247269713 is a prime.

It is a super-2 number, since 2×247270225² = 122285128343101250, which contains 22 as substring.

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, 4801 + ... + 22750.

It is an arithmetic number, because the mean of its divisors is an integer number (25623360).

Almost surely, 2^247270225 is an apocalyptic number.

247270225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

247270225 is a deficient number, since it is larger than the sum of its proper divisors (60210095).

247270225 is a wasteful number, since it uses less digits than its factorization.

247270225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27920 (or 27915 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 31.

The square root of 247270225 is about 15724.8282979497. The cubic root of 247270225 is about 627.6592612798.

The spelling of 247270225 in words is "two hundred forty-seven million, two hundred seventy thousand, two hundred twenty-five".