75050665 has 16 divisors (see below), whose sum is σ = 100379520. Its totient is φ = 53533440.

The previous prime is 75050639. The next prime is 75050669. The reversal of 75050665 is 56605057.

It is not a de Polignac number, because 75050665 - 2²⁵ = 41496233 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 75050665.

It is not an unprimeable number, because it can be changed into a prime (75050669) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21621 + ... + 24850.

It is an arithmetic number, because the mean of its divisors is an integer number (6273720).

Almost surely, 2^75050665 is an apocalyptic number.

It is an amenable number.

75050665 is a deficient number, since it is larger than the sum of its proper divisors (25328855).

75050665 is a wasteful number, since it uses less digits than its factorization.

75050665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46512.

The product of its (nonzero) digits is 31500, while the sum is 34.

The square root of 75050665 is about 8663.1786891418. The cubic root of 75050665 is about 421.8112724224.

It can be divided in two parts, 750 and 50665, that added together give a palindrome (51415).

The spelling of 75050665 in words is "seventy-five million, fifty thousand, six hundred sixty-five".