825118219 has 2 divisors, whose sum is σ = 825118220. Its totient is φ = 825118218.

The previous prime is 825118213. The next prime is 825118253. The reversal of 825118219 is 912811528.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 825118219 - 2³ = 825118211 is a prime.

It is a super-2 number, since 2×825118219² = 1361640150651463922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (825118211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 412559109 + 412559110.

It is an arithmetic number, because the mean of its divisors is an integer number (412559110).

Almost surely, 2^825118219 is an apocalyptic number.

825118219 is a deficient number, since it is larger than the sum of its proper divisors (1).

825118219 is an equidigital number, since it uses as much as digits as its factorization.

825118219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11520, while the sum is 37.

The square root of 825118219 is about 28724.8710876133. The cubic root of 825118219 is about 937.9335240357.

The spelling of 825118219 in words is "eight hundred twenty-five million, one hundred eighteen thousand, two hundred nineteen".