68550402 has 8 divisors (see below), whose sum is σ = 137100816. Its totient is φ = 22850132.

The previous prime is 68550371. The next prime is 68550407. The reversal of 68550402 is 20405586.

It is a sphenic number, since it is the product of 3 distinct primes.

68550402 is an admirable number.

It is a super-2 number, since 2×68550402² = 9398315228723208, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68550402.

It is not an unprimeable number, because it can be changed into a prime (68550407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5712528 + ... + 5712539.

It is an arithmetic number, because the mean of its divisors is an integer number (17137602).

Almost surely, 2^68550402 is an apocalyptic number.

68550402 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68550402 is a wasteful number, since it uses less digits than its factorization.

68550402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11425072.

The product of its (nonzero) digits is 9600, while the sum is 30.

The square root of 68550402 is about 8279.5170148989. The cubic root of 68550402 is about 409.2638028076.

Adding to 68550402 its reverse (20405586), we get a palindrome (88955988).

The spelling of 68550402 in words is "sixty-eight million, five hundred fifty thousand, four hundred two".