68251433 has 2 divisors, whose sum is σ = 68251434. Its totient is φ = 68251432.

The previous prime is 68251427. The next prime is 68251453. The reversal of 68251433 is 33415286.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57805609 + 10445824 = 7603^2 + 3232^2 .

It is a cyclic number.

It is not a de Polignac number, because 68251433 - 2⁸ = 68251177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68251433.

It is not a weakly prime, because it can be changed into another prime (68251453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34125716 + 34125717.

It is an arithmetic number, because the mean of its divisors is an integer number (34125717).

Almost surely, 2^68251433 is an apocalyptic number.

It is an amenable number.

68251433 is a deficient number, since it is larger than the sum of its proper divisors (1).

68251433 is an equidigital number, since it uses as much as digits as its factorization.

68251433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 32.

The square root of 68251433 is about 8261.4425495793. The cubic root of 68251433 is about 408.6679614149.

The spelling of 68251433 in words is "sixty-eight million, two hundred fifty-one thousand, four hundred thirty-three".