75575545 has 8 divisors (see below), whose sum is σ = 90748224. Its totient is φ = 60422064.

The previous prime is 75575543. The next prime is 75575581. The reversal of 75575545 is 54557557.

It is a happy number.

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 75575545 - 2¹ = 75575543 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75575543) 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, 6132 + ... + 13738.

It is an arithmetic number, because the mean of its divisors is an integer number (11343528).

Almost surely, 2^75575545 is an apocalyptic number.

It is an amenable number.

75575545 is a deficient number, since it is larger than the sum of its proper divisors (15172679).

75575545 is a wasteful number, since it uses less digits than its factorization.

75575545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9599.

The product of its digits is 612500, while the sum is 43.

The square root of 75575545 is about 8693.4196378640. The cubic root of 75575545 is about 422.7923259671.

The spelling of 75575545 in words is "seventy-five million, five hundred seventy-five thousand, five hundred forty-five".