67550945 has 32 divisors (see below), whose sum is σ = 107018496. Its totient is φ = 39628800.

The previous prime is 67550939. The next prime is 67550957. The reversal of 67550945 is 54905576.

It is not a de Polignac number, because 67550945 - 2⁶ = 67550881 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 1385 + ... + 11705.

It is an arithmetic number, because the mean of its divisors is an integer number (3344328).

Almost surely, 2^67550945 is an apocalyptic number.

It is an amenable number.

67550945 is a deficient number, since it is larger than the sum of its proper divisors (39467551).

67550945 is a wasteful number, since it uses less digits than its factorization.

67550945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10361.

The product of its (nonzero) digits is 189000, while the sum is 41.

The square root of 67550945 is about 8218.9381917618. The cubic root of 67550945 is about 407.2650508078.

The spelling of 67550945 in words is "sixty-seven million, five hundred fifty thousand, nine hundred forty-five".