75505823 has 8 divisors (see below), whose sum is σ = 80028000. Its totient is φ = 70992640.

The previous prime is 75505817. The next prime is 75505831. The reversal of 75505823 is 32850557.

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 75505823 - 2¹⁰ = 75504799 is a prime.

It is a super-2 number, since 2×75505823² = 11402258613814658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75505813) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23678 + ... + 26676.

It is an arithmetic number, because the mean of its divisors is an integer number (10003500).

Almost surely, 2^75505823 is an apocalyptic number.

75505823 is a deficient number, since it is larger than the sum of its proper divisors (4522177).

75505823 is a wasteful number, since it uses less digits than its factorization.

75505823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4497.

The product of its (nonzero) digits is 42000, while the sum is 35.

The square root of 75505823 is about 8689.4086680280. The cubic root of 75505823 is about 422.6622706865.

The spelling of 75505823 in words is "seventy-five million, five hundred five thousand, eight hundred twenty-three".