425225249 has 2 divisors, whose sum is σ = 425225250. Its totient is φ = 425225248.

The previous prime is 425225197. The next prime is 425225257. The reversal of 425225249 is 942522524.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 381928849 + 43296400 = 19543^2 + 6580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-425225249 is a prime.

It is a super-2 number, since 2×425225249² = 361633024774224002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425225299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212612624 + 212612625.

It is an arithmetic number, because the mean of its divisors is an integer number (212612625).

Almost surely, 2^425225249 is an apocalyptic number.

It is an amenable number.

425225249 is a deficient number, since it is larger than the sum of its proper divisors (1).

425225249 is an equidigital number, since it uses as much as digits as its factorization.

425225249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57600, while the sum is 35.

The square root of 425225249 is about 20620.9904951241. The cubic root of 425225249 is about 751.9801004099.

The spelling of 425225249 in words is "four hundred twenty-five million, two hundred twenty-five thousand, two hundred forty-nine".