75528345 has 16 divisors (see below), whose sum is σ = 122376960. Its totient is φ = 39771264.

The previous prime is 75528311. The next prime is 75528347. The reversal of 75528345 is 54382557.

It is not a de Polignac number, because 75528345 - 2⁶ = 75528281 is a prime.

It is a super-3 number, since 3×75528345³ (a number of 25 digits) contains 333 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (75528347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30684 + ... + 33053.

It is an arithmetic number, because the mean of its divisors is an integer number (7648560).

Almost surely, 2^75528345 is an apocalyptic number.

It is an amenable number.

75528345 is a deficient number, since it is larger than the sum of its proper divisors (46848615).

75528345 is a wasteful number, since it uses less digits than its factorization.

75528345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63824.

The product of its digits is 168000, while the sum is 39.

The square root of 75528345 is about 8690.7045168962. The cubic root of 75528345 is about 422.7042906393.

The spelling of 75528345 in words is "seventy-five million, five hundred twenty-eight thousand, three hundred forty-five".