75066091 has 8 divisors (see below), whose sum is σ = 75984480. Its totient is φ = 74151552.

The previous prime is 75066077. The next prime is 75066107. The reversal of 75066091 is 19066057.

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 75066091 - 2⁹ = 75065579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75066491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60465 + ... + 61693.

It is an arithmetic number, because the mean of its divisors is an integer number (9498060).

Almost surely, 2^75066091 is an apocalyptic number.

75066091 is a deficient number, since it is larger than the sum of its proper divisors (918389).

75066091 is a wasteful number, since it uses less digits than its factorization.

75066091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1925.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 75066091 is about 8664.0689632528. The cubic root of 75066091 is about 421.8401703006.

Subtracting from 75066091 its sum of digits (34), we obtain a palindrome (75066057).

The spelling of 75066091 in words is "seventy-five million, sixty-six thousand, ninety-one".