75056399 has 8 divisors (see below), whose sum is σ = 82917120. Its totient is φ = 67368600.

The previous prime is 75056393. The next prime is 75056417. The reversal of 75056399 is 99365057.

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 75056399 - 2⁸ = 75056143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75056393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42317 + ... + 44054.

It is an arithmetic number, because the mean of its divisors is an integer number (10364640).

Almost surely, 2^75056399 is an apocalyptic number.

75056399 is a gapful number since it is divisible by the number (79) formed by its first and last digit.

75056399 is a deficient number, since it is larger than the sum of its proper divisors (7860721).

75056399 is a wasteful number, since it uses less digits than its factorization.

75056399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86461.

The product of its (nonzero) digits is 255150, while the sum is 44.

The square root of 75056399 is about 8663.5096237033. The cubic root of 75056399 is about 421.8220145179.

The spelling of 75056399 in words is "seventy-five million, fifty-six thousand, three hundred ninety-nine".