68163250 has 32 divisors (see below), whose sum is σ = 131068080. Its totient is φ = 26524800.

The previous prime is 68163233. The next prime is 68163257. The reversal of 68163250 is 5236186.

It can be written as a sum of positive squares in 8 ways, for example, as 25613721 + 42549529 = 5061^2 + 6523^2 .

It is a plaindrome in base 13.

It is a zygodrome in base 5.

It is not an unprimeable number, because it can be changed into a prime (68163257) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5566 + ... + 12934.

Almost surely, 2^68163250 is an apocalyptic number.

68163250 is a deficient number, since it is larger than the sum of its proper divisors (62904830).

68163250 is a wasteful number, since it uses less digits than its factorization.

68163250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7423 (or 7413 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

The square root of 68163250 is about 8256.1038026420. The cubic root of 68163250 is about 408.4918816025.

The spelling of 68163250 in words is "sixty-eight million, one hundred sixty-three thousand, two hundred fifty".