225417643049 has 2 divisors, whose sum is σ = 225417643050. Its totient is φ = 225417643048.

The previous prime is 225417643027. The next prime is 225417643117. The reversal of 225417643049 is 940346714522.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 143002716649 + 82414926400 = 378157^2 + 287080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-225417643049 is a prime.

It is a super-2 number, since 2×225417643049² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 225417642994 and 225417643012.

It is not a weakly prime, because it can be changed into another prime (225417663049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112708821524 + 112708821525.

It is an arithmetic number, because the mean of its divisors is an integer number (112708821525).

Almost surely, 2^225417643049 is an apocalyptic number.

It is an amenable number.

225417643049 is a deficient number, since it is larger than the sum of its proper divisors (1).

225417643049 is an equidigital number, since it uses as much as digits as its factorization.

225417643049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 225417643049 in words is "two hundred twenty-five billion, four hundred seventeen million, six hundred forty-three thousand, forty-nine".