68773550 has 24 divisors (see below), whose sum is σ = 129102600. Its totient is φ = 27254880.

The previous prime is 68773547. The next prime is 68773553. The reversal of 68773550 is 5537786.

It is an interprime number because it is at equal distance from previous prime (68773547) and next prime (68773553).

It is a Smith number, since the sum of its digits (41) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 68773498 and 68773507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68773553) 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 11 ways as a sum of consecutive naturals, for example, 860 + ... + 11759.

It is an arithmetic number, because the mean of its divisors is an integer number (5379275).

Almost surely, 2^68773550 is an apocalyptic number.

68773550 is a deficient number, since it is larger than the sum of its proper divisors (60329050).

68773550 is a wasteful number, since it uses less digits than its factorization.

68773550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12740 (or 12735 counting only the distinct ones).

The product of its (nonzero) digits is 176400, while the sum is 41.

The square root of 68773550 is about 8292.9819727285. The cubic root of 68773550 is about 409.7074057566.

The spelling of 68773550 in words is "sixty-eight million, seven hundred seventy-three thousand, five hundred fifty".