225016255207217 has 2 divisors, whose sum is σ = 225016255207218. Its totient is φ = 225016255207216.

The previous prime is 225016255207171. The next prime is 225016255207241. The reversal of 225016255207217 is 712702552610522.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145309499604721 + 79706755602496 = 12054439^2 + 8927864^2 .

It is a cyclic number.

It is not a de Polignac number, because 225016255207217 - 2²⁴ = 225016238430001 is a prime.

It is not a weakly prime, because it can be changed into another prime (225016255207417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112508127603608 + 112508127603609.

It is an arithmetic number, because the mean of its divisors is an integer number (112508127603609).

Almost surely, 2^{225016255207217} is an apocalyptic number.

It is an amenable number.

225016255207217 is a deficient number, since it is larger than the sum of its proper divisors (1).

225016255207217 is an equidigital number, since it uses as much as digits as its factorization.

225016255207217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1176000, while the sum is 47.

The spelling of 225016255207217 in words is "two hundred twenty-five trillion, sixteen billion, two hundred fifty-five million, two hundred seven thousand, two hundred seventeen".