67540755 has 8 divisors (see below), whose sum is σ = 108065232. Its totient is φ = 36021728.

The previous prime is 67540751. The next prime is 67540769. The reversal of 67540755 is 55704576.

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

It is a cyclic number.

It is not a de Polignac number, because 67540755 - 2² = 67540751 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67540751) 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 7 ways as a sum of consecutive naturals, for example, 2251344 + ... + 2251373.

It is an arithmetic number, because the mean of its divisors is an integer number (13508154).

Almost surely, 2^67540755 is an apocalyptic number.

67540755 is a deficient number, since it is larger than the sum of its proper divisors (40524477).

67540755 is a wasteful number, since it uses less digits than its factorization.

67540755 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4502725.

The product of its (nonzero) digits is 147000, while the sum is 39.

The square root of 67540755 is about 8218.3182586220. The cubic root of 67540755 is about 407.2445712544.

The spelling of 67540755 in words is "sixty-seven million, five hundred forty thousand, seven hundred fifty-five".