68575545 has 32 divisors (see below), whose sum is σ = 122342400. Its totient is φ = 36444672.

The previous prime is 68575477. The next prime is 68575547. The reversal of 68575545 is 54557586.

It is not a de Polignac number, because 68575545 - 2⁹ = 68575033 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68575545.

It is not an unprimeable number, because it can be changed into a prime (68575547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46936 + ... + 48374.

It is an arithmetic number, because the mean of its divisors is an integer number (3823200).

Almost surely, 2^68575545 is an apocalyptic number.

It is an amenable number.

68575545 is a deficient number, since it is larger than the sum of its proper divisors (53766855).

68575545 is a wasteful number, since it uses less digits than its factorization.

68575545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1806 (or 1800 counting only the distinct ones).

The product of its digits is 840000, while the sum is 45.

The square root of 68575545 is about 8281.0352613668. The cubic root of 68575545 is about 409.3138334501.

The spelling of 68575545 in words is "sixty-eight million, five hundred seventy-five thousand, five hundred forty-five".