68211355 has 8 divisors (see below), whose sum is σ = 81900000. Its totient is φ = 54538176.

The previous prime is 68211337. The next prime is 68211379. The reversal of 68211355 is 55311286.

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 68211355 - 2⁹ = 68210843 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11146 + ... + 16144.

It is an arithmetic number, because the mean of its divisors is an integer number (10237500).

Almost surely, 2^68211355 is an apocalyptic number.

68211355 is a deficient number, since it is larger than the sum of its proper divisors (13688645).

68211355 is a wasteful number, since it uses less digits than its factorization.

68211355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7733.

The product of its digits is 7200, while the sum is 31.

The square root of 68211355 is about 8259.0165879480. The cubic root of 68211355 is about 408.5879542962.

The spelling of 68211355 in words is "sixty-eight million, two hundred eleven thousand, three hundred fifty-five".