68551505 has 16 divisors (see below), whose sum is σ = 92836800. Its totient is φ = 48135360.

The previous prime is 68551501. The next prime is 68551507. The reversal of 68551505 is 50515586.

It is not a de Polignac number, because 68551505 - 2² = 68551501 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68551501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19895 + ... + 23084.

It is an arithmetic number, because the mean of its divisors is an integer number (5802300).

Almost surely, 2^68551505 is an apocalyptic number.

It is an amenable number.

68551505 is a deficient number, since it is larger than the sum of its proper divisors (24285295).

68551505 is a wasteful number, since it uses less digits than its factorization.

68551505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43024.

The product of its (nonzero) digits is 30000, while the sum is 35.

The square root of 68551505 is about 8279.5836247966. The cubic root of 68551505 is about 409.2659978618.

The spelling of 68551505 in words is "sixty-eight million, five hundred fifty-one thousand, five hundred five".