68255629 has 8 divisors (see below), whose sum is σ = 77830200. Its totient is φ = 59298816.

The previous prime is 68255599. The next prime is 68255641. The reversal of 68255629 is 92655286.

It can be written as a sum of positive squares in 4 ways, for example, as 6240004 + 62015625 = 2498^2 + 7875^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68255629 - 2⁷ = 68255501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68255659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 154204 + ... + 154645.

It is an arithmetic number, because the mean of its divisors is an integer number (9728775).

Almost surely, 2^68255629 is an apocalyptic number.

It is an amenable number.

68255629 is a deficient number, since it is larger than the sum of its proper divisors (9574571).

68255629 is a wasteful number, since it uses less digits than its factorization.

68255629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308879.

The product of its digits is 259200, while the sum is 43.

The square root of 68255629 is about 8261.6964964830. The cubic root of 68255629 is about 408.6763360162.

The spelling of 68255629 in words is "sixty-eight million, two hundred fifty-five thousand, six hundred twenty-nine".