425885387 has 16 divisors (see below), whose sum is σ = 449820000. Its totient is φ = 402662400.

The previous prime is 425885357. The next prime is 425885393. The reversal of 425885387 is 783588524.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 425885387 - 2²⁸ = 157449931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (425885357) 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 in 15 ways as a sum of consecutive naturals, for example, 283364 + ... + 284862.

It is an arithmetic number, because the mean of its divisors is an integer number (28113750).

Almost surely, 2^425885387 is an apocalyptic number.

425885387 is a deficient number, since it is larger than the sum of its proper divisors (23934613).

425885387 is a wasteful number, since it uses less digits than its factorization.

425885387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1726.

The product of its digits is 2150400, while the sum is 50.

The square root of 425885387 is about 20636.9907447767. The cubic root of 425885387 is about 752.3690346504.

The spelling of 425885387 in words is "four hundred twenty-five million, eight hundred eighty-five thousand, three hundred eighty-seven".