168838025 has 6 divisors (see below), whose sum is σ = 209359182. Its totient is φ = 135070400.

The previous prime is 168838013. The next prime is 168838037. The reversal of 168838025 is 520838861.

It is an interprime number because it is at equal distance from previous prime (168838013) and next prime (168838037).

It can be written as a sum of positive squares in 3 ways, for example, as 123904 + 168714121 = 352^2 + 12989^2 .

It is not a de Polignac number, because 168838025 - 2⁶ = 168837961 is a prime.

It is a Duffinian number.

It is a Curzon number.

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, 3376736 + ... + 3376785.

It is an arithmetic number, because the mean of its divisors is an integer number (34893197).

Almost surely, 2^168838025 is an apocalyptic number.

It is an amenable number.

168838025 is a deficient number, since it is larger than the sum of its proper divisors (40521157).

168838025 is an equidigital number, since it uses as much as digits as its factorization.

168838025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6753531 (or 6753526 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 41.

The square root of 168838025 is about 12993.7686988802. The cubic root of 168838025 is about 552.7007930933.

The spelling of 168838025 in words is "one hundred sixty-eight million, eight hundred thirty-eight thousand, twenty-five".