425008999 has 2 divisors, whose sum is σ = 425009000. Its totient is φ = 425008998.

The previous prime is 425008957. The next prime is 425009023. The reversal of 425008999 is 999800524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425008999 - 2¹⁵ = 424976231 is a prime.

It is a super-3 number, since 3×425008999³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (425008699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212504499 + 212504500.

It is an arithmetic number, because the mean of its divisors is an integer number (212504500).

Almost surely, 2^425008999 is an apocalyptic number.

425008999 is a deficient number, since it is larger than the sum of its proper divisors (1).

425008999 is an equidigital number, since it uses as much as digits as its factorization.

425008999 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 46.

The square root of 425008999 is about 20615.7463847419. The cubic root of 425008999 is about 751.8526046327.

The spelling of 425008999 in words is "four hundred twenty-five million, eight thousand, nine hundred ninety-nine".