68550642 has 24 divisors (see below), whose sum is σ = 150621120. Its totient is φ = 22527960.

The previous prime is 68550631. The next prime is 68550683. The reversal of 68550642 is 24605586.

68550642 is a `hidden beast` number, since 6 + 8 + 5 + 5 + 0 + 642 = 666.

It is a super-2 number, since 2×68550642² = 9398381037224328, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68550597 and 68550606.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25542 + ... + 28097.

It is an arithmetic number, because the mean of its divisors is an integer number (6275880).

Almost surely, 2^68550642 is an apocalyptic number.

68550642 is an abundant number, since it is smaller than the sum of its proper divisors (82070478).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68550642 is a wasteful number, since it uses less digits than its factorization.

68550642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53718 (or 53715 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The square root of 68550642 is about 8279.5315084852. The cubic root of 68550642 is about 409.2642804279.

The spelling of 68550642 in words is "sixty-eight million, five hundred fifty thousand, six hundred forty-two".