68297250 has 64 divisors (see below), whose sum is σ = 194837760. Its totient is φ = 15609600.

The previous prime is 68297221. The next prime is 68297363. The reversal of 68297250 is 5279286.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68297199 and 68297208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1255 + ... + 11754.

It is an arithmetic number, because the mean of its divisors is an integer number (3044340).

Almost surely, 2^68297250 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 68297250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (97418880).

68297250 is an abundant number, since it is smaller than the sum of its proper divisors (126540510).

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

68297250 is a wasteful number, since it uses less digits than its factorization.

68297250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13036 (or 13026 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 39.

The square root of 68297250 is about 8264.2150262442. The cubic root of 68297250 is about 408.7593868544.

The spelling of 68297250 in words is "sixty-eight million, two hundred ninety-seven thousand, two hundred fifty".