425666323 has 2 divisors, whose sum is σ = 425666324. Its totient is φ = 425666322.

The previous prime is 425666287. The next prime is 425666369. The reversal of 425666323 is 323666524.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 425666323 - 2¹³ = 425658131 is a prime.

It is not a weakly prime, because it can be changed into another prime (425666393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212833161 + 212833162.

It is an arithmetic number, because the mean of its divisors is an integer number (212833162).

Almost surely, 2^425666323 is an apocalyptic number.

425666323 is a deficient number, since it is larger than the sum of its proper divisors (1).

425666323 is an equidigital number, since it uses as much as digits as its factorization.

425666323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 155520, while the sum is 37.

The square root of 425666323 is about 20631.6825053121. The cubic root of 425666323 is about 752.2400130541.

The spelling of 425666323 in words is "four hundred twenty-five million, six hundred sixty-six thousand, three hundred twenty-three".