75528493 has 8 divisors (see below), whose sum is σ = 78068736. Its totient is φ = 72994800.

The previous prime is 75528487. The next prime is 75528517. The reversal of 75528493 is 39482557.

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 75528493 - 2²⁵ = 41974061 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 (75528463) 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 7 ways as a sum of consecutive naturals, for example, 35580 + ... + 37642.

It is an arithmetic number, because the mean of its divisors is an integer number (9758592).

Almost surely, 2^75528493 is an apocalyptic number.

It is an amenable number.

75528493 is a deficient number, since it is larger than the sum of its proper divisors (2540243).

75528493 is a wasteful number, since it uses less digits than its factorization.

75528493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3275.

The product of its digits is 302400, while the sum is 43.

The square root of 75528493 is about 8690.7130317368. The cubic root of 75528493 is about 422.7045667396.

The spelling of 75528493 in words is "seventy-five million, five hundred twenty-eight thousand, four hundred ninety-three".