75645605 has 8 divisors (see below), whose sum is σ = 103742592. Its totient is φ = 51871248.

The previous prime is 75645587. The next prime is 75645623. The reversal of 75645605 is 50654657.

It is an interprime number because it is at equal distance from previous prime (75645587) and next prime (75645623).

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 75645605 - 2¹⁰ = 75644581 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 1080617 + ... + 1080686.

It is an arithmetic number, because the mean of its divisors is an integer number (12967824).

Almost surely, 2^75645605 is an apocalyptic number.

It is an amenable number.

75645605 is a deficient number, since it is larger than the sum of its proper divisors (28096987).

75645605 is a wasteful number, since it uses less digits than its factorization.

75645605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2161315.

The product of its (nonzero) digits is 126000, while the sum is 38.

The square root of 75645605 is about 8697.4481889805. The cubic root of 75645605 is about 422.9229311870.

It can be divided in two parts, 75645 and 605, that multiplied together give a square (45765225 = 6765²).

The spelling of 75645605 in words is "seventy-five million, six hundred forty-five thousand, six hundred five".