755555 has 8 divisors (see below), whose sum is σ = 914112. Its totient is φ = 599488.

The previous prime is 755551. The next prime is 755561. The reversal of 755555 is 555557.

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 755555 - 2² = 755551 is a prime.

It is an Ulam number.

It is a Duffinian number.

755555 is a modest number, since divided by 5555 gives 75 as remainder.

It is a nialpdrome in base 10 and base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 755555.

It is not an unprimeable number, because it can be changed into a prime (755551) 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, 134 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (114264).

2⁷⁵⁵⁵⁵⁵ is an apocalyptic number.

755555 is a deficient number, since it is larger than the sum of its proper divisors (158557).

755555 is a wasteful number, since it uses less digits than its factorization.

755555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1245.

The product of its digits is 21875, while the sum is 32.

The square root of 755555 is about 869.2266677915. The cubic root of 755555 is about 91.0797915463.

The spelling of 755555 in words is "seven hundred fifty-five thousand, five hundred fifty-five".