225425818819 has 2 divisors, whose sum is σ = 225425818820. Its totient is φ = 225425818818.

The previous prime is 225425818733. The next prime is 225425818831. The reversal of 225425818819 is 918818524522.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225425818819 is a prime.

It is a super-2 number, since 2×225425818819² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 225425818819.

It is not a weakly prime, because it can be changed into another prime (225425828819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112712909409 + 112712909410.

It is an arithmetic number, because the mean of its divisors is an integer number (112712909410).

Almost surely, 2^225425818819 is an apocalyptic number.

225425818819 is a deficient number, since it is larger than the sum of its proper divisors (1).

225425818819 is an equidigital number, since it uses as much as digits as its factorization.

225425818819 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3686400, while the sum is 55.

The spelling of 225425818819 in words is "two hundred twenty-five billion, four hundred twenty-five million, eight hundred eighteen thousand, eight hundred nineteen".