755591 has 4 divisors (see below), whose sum is σ = 759384. Its totient is φ = 751800.

The previous prime is 755569. The next prime is 755593. The reversal of 755591 is 195557.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 195557 = 167 ⋅1171.

It is a cyclic number.

It is not a de Polignac number, because 755591 - 2¹⁸ = 493447 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (755593) 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 3 ways as a sum of consecutive naturals, for example, 1580 + ... + 2001.

It is an arithmetic number, because the mean of its divisors is an integer number (189846).

2⁷⁵⁵⁵⁹¹ is an apocalyptic number.

755591 is a deficient number, since it is larger than the sum of its proper divisors (3793).

755591 is a wasteful number, since it uses less digits than its factorization.

755591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3792.

The product of its digits is 7875, while the sum is 32.

The square root of 755591 is about 869.2473756072. The cubic root of 755591 is about 91.0812380858.

The spelling of 755591 in words is "seven hundred fifty-five thousand, five hundred ninety-one".