75566065 has 16 divisors (see below), whose sum is σ = 93888000. Its totient is φ = 58325760.

The previous prime is 75566041. The next prime is 75566069. The reversal of 75566065 is 56066557.

It is not a de Polignac number, because 75566065 - 2⁵ = 75566033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75566069) 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 15 ways as a sum of consecutive naturals, for example, 76857 + ... + 77833.

It is an arithmetic number, because the mean of its divisors is an integer number (5868000).

Almost surely, 2^75566065 is an apocalyptic number.

It is an amenable number.

75566065 is a deficient number, since it is larger than the sum of its proper divisors (18321935).

75566065 is a wasteful number, since it uses less digits than its factorization.

75566065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1512.

The product of its (nonzero) digits is 189000, while the sum is 40.

The square root of 75566065 is about 8692.8743807788. The cubic root of 75566065 is about 422.7746472376.

The spelling of 75566065 in words is "seventy-five million, five hundred sixty-six thousand, sixty-five".