425899 has 2 divisors, whose sum is σ = 425900. Its totient is φ = 425898.

The previous prime is 425879. The next prime is 425903. The reversal of 425899 is 998524.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 425899 - 2⁹ = 425387 is a prime.

It is not a weakly prime, because it can be changed into another prime (425819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212949 + 212950.

It is an arithmetic number, because the mean of its divisors is an integer number (212950).

2⁴²⁵⁸⁹⁹ is an apocalyptic number.

425899 is a deficient number, since it is larger than the sum of its proper divisors (1).

425899 is an equidigital number, since it uses as much as digits as its factorization.

425899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920, while the sum is 37.

The square root of 425899 is about 652.6093778057. The cubic root of 425899 is about 75.2377050806.

The spelling of 425899 in words is "four hundred twenty-five thousand, eight hundred ninety-nine".