75350325221 has 2 divisors, whose sum is σ = 75350325222. Its totient is φ = 75350325220.

The previous prime is 75350325199. The next prime is 75350325283. The reversal of 75350325221 is 12252305357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75114364900 + 235960321 = 274070^2 + 15361^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75350325221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75350325121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37675162610 + 37675162611.

It is an arithmetic number, because the mean of its divisors is an integer number (37675162611).

Almost surely, 2^75350325221 is an apocalyptic number.

It is an amenable number.

75350325221 is a deficient number, since it is larger than the sum of its proper divisors (1).

75350325221 is an equidigital number, since it uses as much as digits as its factorization.

75350325221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 63000, while the sum is 35.

The spelling of 75350325221 in words is "seventy-five billion, three hundred fifty million, three hundred twenty-five thousand, two hundred twenty-one".