247225216 has 32 divisors (see below), whose sum is σ = 562880880. Its totient is φ = 105953280.

The previous prime is 247225213. The next prime is 247225219. The reversal of 247225216 is 612522742.

247225216 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (247225213) and next prime (247225219).

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×247225216² = 122240614852493312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247225213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137065 + ... + 138856.

Almost surely, 2^247225216 is an apocalyptic number.

It is an amenable number.

247225216 is an abundant number, since it is smaller than the sum of its proper divisors (315655664).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

247225216 is an equidigital number, since it uses as much as digits as its factorization.

247225216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275942 (or 275930 counting only the distinct ones).

The product of its digits is 13440, while the sum is 31.

The square root of 247225216 is about 15723.3970884157. The cubic root of 247225216 is about 627.6211760501.

Adding to 247225216 its reverse (612522742), we get a palindrome (859747958).

The spelling of 247225216 in words is "two hundred forty-seven million, two hundred twenty-five thousand, two hundred sixteen".