239917225 has 6 divisors (see below), whose sum is σ = 297497390. Its totient is φ = 191933760.

The previous prime is 239917207. The next prime is 239917241. The reversal of 239917225 is 522719932.

239917225 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 627264 + 239289961 = 792^2 + 15469^2 .

It is not a de Polignac number, because 239917225 - 2¹⁷ = 239786153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4798320 + ... + 4798369.

Almost surely, 2^239917225 is an apocalyptic number.

239917225 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

239917225 is a deficient number, since it is larger than the sum of its proper divisors (57580165).

239917225 is an equidigital number, since it uses as much as digits as its factorization.

239917225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9596699 (or 9596694 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 239917225 is about 15489.2616028008. The cubic root of 239917225 is about 621.3750482059.

The spelling of 239917225 in words is "two hundred thirty-nine million, nine hundred seventeen thousand, two hundred twenty-five".