68278250 has 16 divisors (see below), whose sum is σ = 127817352. Its totient is φ = 27311200.

The previous prime is 68278247. The next prime is 68278271. The reversal of 68278250 is 5287286.

It can be written as a sum of positive squares in 4 ways, for example, as 21724921 + 46553329 = 4661^2 + 6823^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136307 + ... + 136806.

Almost surely, 2^68278250 is an apocalyptic number.

68278250 is a deficient number, since it is larger than the sum of its proper divisors (59539102).

68278250 is a wasteful number, since it uses less digits than its factorization.

68278250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 273130 (or 273120 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 68278250 is about 8263.0654118190. The cubic root of 68278250 is about 408.7214783068.

The spelling of 68278250 in words is "sixty-eight million, two hundred seventy-eight thousand, two hundred fifty".