75483509 has 4 divisors (see below), whose sum is σ = 75552204. Its totient is φ = 75414816.

The previous prime is 75483503. The next prime is 75483511. The reversal of 75483509 is 90538457.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 90538457 = 61 ⋅1484237.

It can be written as a sum of positive squares in 2 ways, for example, as 14799409 + 60684100 = 3847^2 + 7790^2 .

It is a cyclic number.

It is not a de Polignac number, because 75483509 - 2⁸ = 75483253 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 (75483503) 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, 32672 + ... + 34905.

It is an arithmetic number, because the mean of its divisors is an integer number (18888051).

Almost surely, 2^75483509 is an apocalyptic number.

It is an amenable number.

75483509 is a deficient number, since it is larger than the sum of its proper divisors (68695).

75483509 is a wasteful number, since it uses less digits than its factorization.

75483509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68694.

The product of its (nonzero) digits is 151200, while the sum is 41.

The square root of 75483509 is about 8688.1245962521. The cubic root of 75483509 is about 422.6206305641.

The spelling of 75483509 in words is "seventy-five million, four hundred eighty-three thousand, five hundred nine".