75065919 has 4 divisors (see below), whose sum is σ = 100087896. Its totient is φ = 50043944.

The previous prime is 75065899. The next prime is 75065953. The reversal of 75065919 is 91956057.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 75065919 - 2²⁵ = 41511487 is a prime.

It is a super-2 number, since 2×75065919² = 11269784390629122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75065959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12510984 + ... + 12510989.

It is an arithmetic number, because the mean of its divisors is an integer number (25021974).

Almost surely, 2^75065919 is an apocalyptic number.

75065919 is a deficient number, since it is larger than the sum of its proper divisors (25021977).

75065919 is a wasteful number, since it uses less digits than its factorization.

75065919 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25021976.

The product of its (nonzero) digits is 85050, while the sum is 42.

The square root of 75065919 is about 8664.0590371950. The cubic root of 75065919 is about 421.8398481109.

The spelling of 75065919 in words is "seventy-five million, sixty-five thousand, nine hundred nineteen".