75359221 has 16 divisors (see below), whose sum is σ = 87472000. Its totient is φ = 63592128.

The previous prime is 75359213. The next prime is 75359261. The reversal of 75359221 is 12295357.

It is a cyclic number.

It is not a de Polignac number, because 75359221 - 2³ = 75359213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75359261) 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, 215755 + ... + 216103.

It is an arithmetic number, because the mean of its divisors is an integer number (5467000).

Almost surely, 2^75359221 is an apocalyptic number.

It is an amenable number.

75359221 is a deficient number, since it is larger than the sum of its proper divisors (12112779).

75359221 is a wasteful number, since it uses less digits than its factorization.

75359221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 748.

The product of its digits is 18900, while the sum is 34.

The square root of 75359221 is about 8680.9688975367. The cubic root of 75359221 is about 422.3885466320.

The spelling of 75359221 in words is "seventy-five million, three hundred fifty-nine thousand, two hundred twenty-one".