425210243 has 2 divisors, whose sum is σ = 425210244. Its totient is φ = 425210242.

The previous prime is 425210173. The next prime is 425210249. The reversal of 425210243 is 342012524.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425210243 - 2²⁰ = 424161667 is a prime.

It is not a weakly prime, because it can be changed into another prime (425210249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212605121 + 212605122.

It is an arithmetic number, because the mean of its divisors is an integer number (212605122).

Almost surely, 2^425210243 is an apocalyptic number.

425210243 is a deficient number, since it is larger than the sum of its proper divisors (1).

425210243 is an equidigital number, since it uses as much as digits as its factorization.

425210243 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920, while the sum is 23.

The square root of 425210243 is about 20620.6266393628. The cubic root of 425210243 is about 751.9712546306.

Adding to 425210243 its reverse (342012524), we get a palindrome (767222767).

The spelling of 425210243 in words is "four hundred twenty-five million, two hundred ten thousand, two hundred forty-three".