75355993 has 4 divisors (see below), whose sum is σ = 76959360. Its totient is φ = 73752628.

The previous prime is 75355979. The next prime is 75356011. The reversal of 75355993 is 39955357.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 75355993 - 2⁵ = 75355961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75355963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 801613 + ... + 801706.

It is an arithmetic number, because the mean of its divisors is an integer number (19239840).

Almost surely, 2^75355993 is an apocalyptic number.

It is an amenable number.

75355993 is a deficient number, since it is larger than the sum of its proper divisors (1603367).

75355993 is a wasteful number, since it uses less digits than its factorization.

75355993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1603366.

The product of its digits is 637875, while the sum is 46.

The square root of 75355993 is about 8680.7829715988. The cubic root of 75355993 is about 422.3825155643.

The spelling of 75355993 in words is "seventy-five million, three hundred fifty-five thousand, nine hundred ninety-three".