75755555 has 8 divisors (see below), whose sum is σ = 91807344. Its totient is φ = 60004000.

The previous prime is 75755521. The next prime is 75755579. The reversal of 75755555 is 55555757.

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

It is not a de Polignac number, because 75755555 - 2¹⁰ = 75754531 is a prime.

It is a super-2 number, since 2×75755555² = 11477808226716050, which contains 22 as substring.

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, 74501 + ... + 75510.

It is an arithmetic number, because the mean of its divisors is an integer number (11475918).

Almost surely, 2^75755555 is an apocalyptic number.

75755555 is a deficient number, since it is larger than the sum of its proper divisors (16051789).

75755555 is a wasteful number, since it uses less digits than its factorization.

75755555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150117.

The product of its digits is 765625, while the sum is 44.

The square root of 75755555 is about 8703.7667133259. The cubic root of 75755555 is about 423.1277364991.

The spelling of 75755555 in words is "seventy-five million, seven hundred fifty-five thousand, five hundred fifty-five".