425432243 has 2 divisors, whose sum is σ = 425432244. Its totient is φ = 425432242.

The previous prime is 425432221. The next prime is 425432281. The reversal of 425432243 is 342234524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425432243 - 2¹⁸ = 425170099 is a prime.

It is a super-2 number, since 2×425432243² = 361985186768022098, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (425432443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212716121 + 212716122.

It is an arithmetic number, because the mean of its divisors is an integer number (212716122).

Almost surely, 2^425432243 is an apocalyptic number.

425432243 is a deficient number, since it is larger than the sum of its proper divisors (1).

425432243 is an equidigital number, since it uses as much as digits as its factorization.

425432243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 29.

The square root of 425432243 is about 20626.0088965364. The cubic root of 425432243 is about 752.1020985894.

Adding to 425432243 its reverse (342234524), we get a palindrome (767666767).

The spelling of 425432243 in words is "four hundred twenty-five million, four hundred thirty-two thousand, two hundred forty-three".