420425353 has 2 divisors, whose sum is σ = 420425354. Its totient is φ = 420425352.

The previous prime is 420425329. The next prime is 420425381. The reversal of 420425353 is 353524024.

It is an a-pointer prime, because the next prime (420425381) can be obtained adding 420425353 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 376825744 + 43599609 = 19412^2 + 6603^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420425353 is a prime.

It is not a weakly prime, because it can be changed into another prime (420425153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210212676 + 210212677.

It is an arithmetic number, because the mean of its divisors is an integer number (210212677).

Almost surely, 2^420425353 is an apocalyptic number.

It is an amenable number.

420425353 is a deficient number, since it is larger than the sum of its proper divisors (1).

420425353 is an equidigital number, since it uses as much as digits as its factorization.

420425353 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 420425353 is about 20504.2764563883. The cubic root of 420425353 is about 749.1399640872.

Adding to 420425353 its reverse (353524024), we get a palindrome (773949377).

The spelling of 420425353 in words is "four hundred twenty million, four hundred twenty-five thousand, three hundred fifty-three".