75775555 has 8 divisors (see below), whose sum is σ = 91814112. Its totient is φ = 60031488.

The previous prime is 75775549. The next prime is 75775571. The reversal of 75775555 is 55557757.

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 75775555 - 2¹⁵ = 75742787 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 (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73054 + ... + 74083.

It is an arithmetic number, because the mean of its divisors is an integer number (11476764).

Almost surely, 2^75775555 is an apocalyptic number.

75775555 is a deficient number, since it is larger than the sum of its proper divisors (16038557).

75775555 is a wasteful number, since it uses less digits than its factorization.

75775555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147245.

The product of its digits is 1071875, while the sum is 46.

The square root of 75775555 is about 8704.9155653573. The cubic root of 75775555 is about 423.1649694567.

The spelling of 75775555 in words is "seventy-five million, seven hundred seventy-five thousand, five hundred fifty-five".