68535554 has 4 divisors (see below), whose sum is σ = 102803334. Its totient is φ = 34267776.

The previous prime is 68535553. The next prime is 68535563. The reversal of 68535554 is 45553586.

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

It can be written as a sum of positive squares in only one way, i.e., 68442529 + 93025 = 8273^2 + 305^2 .

It is not an unprimeable number, because it can be changed into a prime (68535553) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17133887 + ... + 17133890.

Almost surely, 2^68535554 is an apocalyptic number.

68535554 is a deficient number, since it is larger than the sum of its proper divisors (34267780).

68535554 is a wasteful number, since it uses less digits than its factorization.

68535554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34267779.

The product of its digits is 360000, while the sum is 41.

The square root of 68535554 is about 8278.6202956773. The cubic root of 68535554 is about 409.2342518613.

The spelling of 68535554 in words is "sixty-eight million, five hundred thirty-five thousand, five hundred fifty-four".