75255545 has 8 divisors (see below), whose sum is σ = 90383040. Its totient is φ = 60153520.

The previous prime is 75255491. The next prime is 75255553. The reversal of 75255545 is 54555257.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75255545 - 2²⁶ = 8146681 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75255499 and 75255508.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 890 + ... + 12300.

It is an arithmetic number, because the mean of its divisors is an integer number (11297880).

Almost surely, 2^75255545 is an apocalyptic number.

It is an amenable number.

75255545 is a deficient number, since it is larger than the sum of its proper divisors (15127495).

75255545 is a wasteful number, since it uses less digits than its factorization.

75255545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12735.

The product of its digits is 175000, while the sum is 38.

The square root of 75255545 is about 8674.9953890478. The cubic root of 75255545 is about 422.1947563569.

The spelling of 75255545 in words is "seventy-five million, two hundred fifty-five thousand, five hundred forty-five".