75050661 has 16 divisors (see below), whose sum is σ = 114944000. Its totient is φ = 42668208.

The previous prime is 75050639. The next prime is 75050669. The reversal of 75050661 is 16605057.

It is not a de Polignac number, because 75050661 - 2⁵ = 75050629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

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, 4801 + ... + 13158.

It is an arithmetic number, because the mean of its divisors is an integer number (7184000).

Almost surely, 2^75050661 is an apocalyptic number.

It is an amenable number.

75050661 is a deficient number, since it is larger than the sum of its proper divisors (39893339).

75050661 is a wasteful number, since it uses less digits than its factorization.

75050661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18168.

The product of its (nonzero) digits is 6300, while the sum is 30.

The square root of 75050661 is about 8663.1784582796. The cubic root of 75050661 is about 421.8112649286.

The spelling of 75050661 in words is "seventy-five million, fifty thousand, six hundred sixty-one".