68655355 has 4 divisors (see below), whose sum is σ = 82386432. Its totient is φ = 54924280.

The previous prime is 68655343. The next prime is 68655407. The reversal of 68655355 is 55355686.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 68655355 - 2⁹ = 68654843 is a prime.

It is a super-3 number, since 3×68655355³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6865531 + ... + 6865540.

It is an arithmetic number, because the mean of its divisors is an integer number (20596608).

Almost surely, 2^68655355 is an apocalyptic number.

68655355 is a deficient number, since it is larger than the sum of its proper divisors (13731077).

68655355 is a wasteful number, since it uses less digits than its factorization.

68655355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13731076.

The product of its digits is 540000, while the sum is 43.

The square root of 68655355 is about 8285.8527020458. The cubic root of 68655355 is about 409.4725619113.

The spelling of 68655355 in words is "sixty-eight million, six hundred fifty-five thousand, three hundred fifty-five".