68550388 has 6 divisors (see below), whose sum is σ = 119963186. Its totient is φ = 34275192.

The previous prime is 68550371. The next prime is 68550407. The reversal of 68550388 is 88305586.

It can be written as a sum of positive squares in only one way, i.e., 41113744 + 27436644 = 6412^2 + 5238^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8568795 + ... + 8568802.

Almost surely, 2^68550388 is an apocalyptic number.

It is an amenable number.

68550388 is a deficient number, since it is larger than the sum of its proper divisors (51412798).

68550388 is a wasteful number, since it uses less digits than its factorization.

68550388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17137601 (or 17137599 counting only the distinct ones).

The product of its (nonzero) digits is 230400, while the sum is 43.

The square root of 68550388 is about 8279.5161694389. The cubic root of 68550388 is about 409.2637749463.

The spelling of 68550388 in words is "sixty-eight million, five hundred fifty thousand, three hundred eighty-eight".