68783250 has 32 divisors (see below), whose sum is σ = 171684864. Its totient is φ = 18342000.

The previous prime is 68783227. The next prime is 68783263. The reversal of 68783250 is 5238786.

It is a super-2 number, since 2×68783250² = 9462270961125000, which contains 22 as substring.

It is a Smith number, since the sum of its digits (39) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68783199 and 68783208.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45106 + ... + 46605.

It is an arithmetic number, because the mean of its divisors is an integer number (5365152).

Almost surely, 2^68783250 is an apocalyptic number.

68783250 is an abundant number, since it is smaller than the sum of its proper divisors (102901614).

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

68783250 is a wasteful number, since it uses less digits than its factorization.

68783250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91731 (or 91721 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The square root of 68783250 is about 8293.5667839597. The cubic root of 68783250 is about 409.7266669164.

The spelling of 68783250 in words is "sixty-eight million, seven hundred eighty-three thousand, two hundred fifty".