30355225217 has 2 divisors, whose sum is σ = 30355225218. Its totient is φ = 30355225216.

The previous prime is 30355225213. The next prime is 30355225231. The reversal of 30355225217 is 71252255303.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 28481287696 + 1873937521 = 168764^2 + 43289^2 .

It is a cyclic number.

It is not a de Polignac number, because 30355225217 - 2² = 30355225213 is a prime.

It is not a weakly prime, because it can be changed into another prime (30355225213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15177612608 + 15177612609.

It is an arithmetic number, because the mean of its divisors is an integer number (15177612609).

Almost surely, 2^30355225217 is an apocalyptic number.

It is an amenable number.

30355225217 is a deficient number, since it is larger than the sum of its proper divisors (1).

30355225217 is an equidigital number, since it uses as much as digits as its factorization.

30355225217 is an evil number, because the sum of its binary digits is even.

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

The spelling of 30355225217 in words is "thirty billion, three hundred fifty-five million, two hundred twenty-five thousand, two hundred seventeen".